What is "carbon reduction"?

"Walking or driving?", "Climbing the stairs or taking the elevator?", seemingly small daily behaviors may contain university questions. In fact, climate change is not only studied by scientists. Propositions, things that government officials think about, it is closely related to everyone's life. A small act in daily life may change the climate and change the lives of the next generation. Global climate warming, every resident on the earth has an unshirkable responsibility. Low-carbon life is not far away. We need to start from the small things around us. In order to protect the beautiful homeland of mankind, let us "reduce carbon" together!

1. Carbon footprint

Carbon dioxide in greenhouse gases is the main culprit of global warming. Low-carbon means reducing the "carbon footprint". What is a carbon footprint? Carbon footprint originates from the English "Carbon Foot-print", which refers to the total amount of carbon dioxide and other greenhouse gases emitted during the entire life cycle of a product and service. It is an indicator that measures the environmental impact of carbon dioxide emissions produced by a country, region, company, household or individual due to daily energy consumption.

Compare whose carbon footprint is “heavier”

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What is the concept of 1 ton of carbon dioxide?

At normal temperature of 25°C and standard atmospheric pressure, the emission of 1 ton of carbon dioxide occupies 556 cubic meters of space. The size of an Olympic swimming pool is approximately 2,500 cubic meters. According to data from the Development Research Center of the State Council, the global average carbon emissions per person is nearly 50 tons, of which the United States is 259.28 tons and China is 19.58 tons.

Carbon footprint is a vivid metaphor that every step in daily life will leave light or heavy footprints on the earth. The heavier the carbon footprint, the greater your responsibility for global warming. Carbon footprint can be divided into the first carbon footprint and the second carbon footprint: the first carbon footprint is the carbon dioxide directly emitted due to the use of fossil energy, such as oil, coal, etc., for example, a person who frequently travels by car will have more second carbon footprints. A carbon footprint, because driving consumes a lot of gasoline and emits a lot of carbon dioxide. When fossil energy is burned, it emits greenhouse gases such as carbon dioxide that cause global warming. Currently, 98% of the carbon dioxide in the atmosphere comes from the combustion of fossil energy. The second carbon footprint refers to the carbon dioxide emitted indirectly through the use of various products. For example, if you consume a bottle of mineral water, it will cause a second carbon footprint due to the emissions produced during its production and transportation.

2. Calculate your carbon footprint

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Carbon Footprint Calculator

A way to calculate personal carbon emissions The carbon footprint calculator promotes the new trend of "low-carbon life" while entertaining. You only need to enter the electricity consumption per day, the mileage traveled by bus, or the liters of fuel consumed by the car, etc., and your carbon dioxide emissions can be briefly calculated, and then it will also prompt how many trees should be planted to compensate.

Carbon dioxide emissions in daily life

Everyone’s daily life of clothing, food, housing and transportation will leave a “carbon footprint”. What is the potential for energy saving and emission reduction? First of all Understand how “heavy” your carbon footprint is. We can use a certain method to calculate the total amount of carbon dioxide gas emitted directly or indirectly based on some daily life data such as electricity consumption, vehicle fuel consumption, or mileage traveled by plane, train or car during travel. Here is a simple and common calculation method:

CO2 household electricity consumption (kg) = electricity consumption × 0.785

CO2 driving a private car (kg) = fuel consumption in liters × 2.7

CO2 meat consumption (kg) = kilograms consumed × 1.24

Take a plane:

CO2 short-distance travel (kg): within 200 kilometers = thousand Meters × 0.275

CO2 mid-range travel (kg): 200~1000 kilometers = (km-200) × 0.105+55

CO2 long-distance travel (kg): 1000 More than a kilometer = number of kilometers × 0.139

After calculating the carbon dioxide emissions, we need to take action to reduce the carbon footprint. During the calculation process, you will realize that different lifestyles will bring different carbon dioxide emissions. By choosing different lifestyles, you can consciously reduce your carbon footprint. Calculating it is not to get a very accurate data. The important thing is that we should advocate a concept of responsibility and an environmentally friendly lifestyle - a low-carbon lifestyle.

3. Are you low-carbon today?

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Low-carbon creativity

A subway station in Stockholm, the capital of Sweden, appeared "Piano Staircase". The pressure sensor is connected to the speaker, and when people go up and down the stairs, the speaker will play a corresponding tone every time they take a step. Not long after the "piano staircase" appeared, the usage rate increased by 66%, while the escalator next to it was neglected. While people enjoy sports and original music, they unknowingly reduce carbon emissions.

Low-carbon creative "piano staircase"

As ordinary people, we may not be able to solve some major environmental issues, but we can do our best to achieve a "low-carbon lifestyle", In fact, it means that everyone should slightly change some behavioral habits, reduce the use of non-renewable fossil energy as much as possible, reduce global carbon dioxide emissions, and thereby improve the human living environment. The United Nations Environment Program published a report on "World Environment Day" in 2008, called the "Low Carbon Life Guide", which put forward seven small suggestions for "low carbon lifestyle" and guided people how to start from the little things in daily life. , contribute to energy conservation and carbon reduction. The seven recommendations include:

●Using traditional wind-up alarm clocks instead of electronic clocks can reduce carbon dioxide emissions by approximately 48 grams per day.

●Using a traditional toothbrush instead of an electric toothbrush can reduce carbon dioxide emissions by 48 grams per day.

●Changing a 45-minute exercise on an electric treadmill to jogging in a nearby park can reduce carbon dioxide emissions by nearly 1,000 grams.

●If you go to a place 8 kilometers away, taking rail transit can reduce carbon dioxide emissions by 1,700 grams compared to taking a car.

●Instead of using a washing machine to dry clothes, letting them dry naturally can reduce carbon dioxide emissions by 2,300 grams.

Seven Tips for a Low-Carbon Lifestyle

● Turn off computers and monitors during lunch breaks and after get off work. In addition to saving electricity, this can also reduce the carbon dioxide emissions of these appliances. Reduce by one third.

●Switching to a water-saving shower head can not only save water, but also reduce the carbon dioxide emissions caused by a three-minute hot shower by half.

These are "low-carbon" lives. Asim Steiner, Executive Director of the United Nations Environment Program, said that in the process of reducing carbon dioxide emissions, "ordinary people have the power to change the future."

4. How to offset your carbon footprint

In addition to fundamentally reducing the carbon footprint, we also need to offset the carbon footprint we have already created. This is "carbon neutrality" . The term "Carbon Neutral" originally originated from the business plan of London's Future Forest Company in 1997. They helped customers calculate the carbon dioxide they produced directly or indirectly in a year, and then allowed customers to choose to absorb the carbon dioxide by planting trees. Corresponding carbon dioxide to achieve the customer's goal of "carbon neutrality".

Eliminate the carbon footprint

Experts estimate that as long as each person plants three trees per year, they can absorb the carbon dioxide emitted by the individual in the basic life process that year, thereby achieving zero emissions. An Audi A4 car emits about 20.2 tons of carbon dioxide per year, which can be absorbed by 11 acres of artificial forest. If a 30-year-old fir tree absorbs 111 kilograms of carbon dioxide and calculates how many trees need to be planted to compensate, and a self-driving car consumes 100 liters of gasoline, then you have emitted 270 kilograms of carbon dioxide and need to plant 3 trees to compensate. If tree planting is not used as compensation, the compensation can be US$10 for every ton of carbon dioxide emitted based on the international general carbon sink price level.

People can now calculate the carbon dioxide emissions directly or indirectly produced by their daily activities through the carbon footprint calculator, and then personally pay special companies or institutions to offset the corresponding emissions in the atmosphere through tree planting or other environmental protection projects. amount of carbon dioxide. Now more and more people are taking advantage of this environmentally friendly method. Obviously, "carbon neutrality" is a reflection of people's self-reflection and self-discipline on the reality of global warming, and a positive action to protect the earth after people wake up.

Carbon sink forest

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Carbon sink forest

The process, activities and mechanisms of removing carbon dioxide from the atmosphere are called as a carbon sink. Carbon sink forests, also known as forest carbon sinks, are plants that absorb carbon dioxide from the atmosphere and fix it in vegetation or soil, thereby reducing the concentration of this gas in the atmosphere. Forests are the largest carbon pool in terrestrial ecosystems and play a very important role in reducing greenhouse gas concentrations and slowing down global climate warming. In Badaling, Beijing, a carbon sink forest farm has taken shape. If you want to offset your carbon emissions, you can come here to buy a carbon sink forest or plant trees.

5. “Quit the addiction and move towards a low-carbon economy”

On June 5, 2008, on the occasion of World Environment Day, the international community issued this call: “Quit the addiction. Kick the Habit! Towards a LowCarbon Economy”. This theme aims to advocate the conservation of resources and energy and the use of clean energy, reduce the emission of atmospheric pollutants carbon dioxide, develop a low-carbon economy, and promote sustainable economic and social development. Since the Industrial Revolution, the main energy sources on which the world's economic development has relied are coal, oil and natural gas. So far, these three fossil energy sources still account for about 87% of the world's energy consumption structure. my country's energy consumption is dominated by coal, which shows the "high carbon" state of energy consumption. Coal accounts for about 70% of primary energy. The core symbol of low carbon is the energy revolution. In terms of energy structure, we must vigorously reduce the use of fossil energy. Proportion, increase the proportion of new energy sources such as wind energy and solar energy.

"Low-carbon economy" not only means accelerating the elimination of backward production capabilities with high energy consumption and high pollution, and promoting scientific and technological innovation in energy conservation and emission reduction, but also means guiding the public to reflect on the consumption patterns and lifestyles they take for granted. The way is to waste energy and increase pollution emissions, thereby fully exploring the huge potential of energy conservation and emission reduction in the service industry and consumer life.

Reduce carbon dioxide emissions

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The origin of World Environment Day

Since the 1950s, environmental pollution problems have caused universal attention from countries around the world. On June 5, 1972, the United Nations held its first Human Environment Conference in Stockholm, the capital of Sweden, and adopted the famous "Declaration on the Human Environment" and the "Action Plan" to protect the global environment, stipulating human rights and obligations towards the global environment* **Same principle. In October of the same year, the 27th United Nations General Assembly decided to establish the United Nations Environment Program based on the recommendations of the Stockholm Conference and officially designated June 5 as "World Environment Day". Since 1974, the United Nations Environment Program has formulated the theme of World Environment Day every year based on the world's major environmental issues and hot spots that year.

The theme of World Environment Day in the past 20 years

6. The arrival of the green consumption revolution - "Plastic Restriction Order"

Have you ever counted the amount of food you need every day? How many plastic bags are used? In China, the production of plastic bags consumes 1.6 million tons of plastic every year, while the production of plastic consumes 4.8 million tons of oil every year. In addition to consuming a lot of natural resources, the production of plastic bags will also cause soil degradation, make garbage disposal more difficult, and even pose a threat to the lives of animals if they accidentally eat them.

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Shopping bags made of stone

Have you ever seen a shopping bag made of “stone”? Now there is "paper made of stone" on the market. Its raw materials mainly come from calcium carbonate in marble, limestone and other ores. It is produced by adding polymer materials. It does not require water, wood and natural plant fibers. The cost is 20% to 30% lower than traditional paper. It can be made with stone paper. Shopping bag. For every ton of stone paper produced, 10 cubic meters of wood and 110 tons of fresh water can be saved. Compared with the traditional papermaking process, several important pollution links such as cooking, washing, and bleaching are omitted, and the "three wastes" caused by the papermaking process are eliminated. pollution problem and is very environmentally friendly.

Research shows that it takes more than 200 years for non-degradable plastic bags to decay naturally. The significance of "plastic restriction" is not only to curb white pollution, but also to save petroleum resources, the source of plastic, and reduce carbon dioxide emissions. At present, China uses about 30 million tons of plastic every year, 10% of which is not recyclable, and about 3% becomes white waste. People are not unaware of the dangers of white pollution, but changing people's consumption habits is not easy. Use cloth bags instead of plastic bags - producing one less plastic bag can save 0.04 grams of standard coal, and correspondingly reduce carbon dioxide emissions by 0.1 grams. A simple arithmetic can illustrate that if each of us can reduce the use of one plastic bag every day, the world will It can reduce carbon dioxide emissions by 23,735 tons in one year.

Let us all reduce the use of plastic bags as much as possible! Remember, if each person uses one less plastic bag per day, it will make a big contribution to improving the environment!

Nondegradable plastic bags

Stone paper shopping bags

7. Carry out garbage classification to the end

We continue to do this every day in our lives The earth's limited resources are turned into garbage. With the development of the economy and the improvement of people's living standards, the amount of garbage discharged has increased rapidly, with the average annual growth rate of domestic waste in the world being 8.42%. The disposal methods that everyone generally thinks of are landfilling, incineration, or simply concentrating and piling them somewhere. These practices are neither environmentally friendly nor wasteful. Are there any good ways to dispose of garbage more efficiently? Are we helpless when it comes to garbage?

In fact, garbage is by no means useless things, they are "misplaced resources". Because we do not properly classify and recycle garbage, not only the waste that can be used but is not used becomes It is the source of secondary pollution and also causes huge waste of resources. Garbage classification means classifying the garbage at the source, and turning it into resources again through classification, transportation and recycling.

Four-color trash cans in Shanghai residential areas

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Small batteries cause huge environmental harm

Did you know? One AA battery rotted in the ground can permanently lose the use value of 1 square meter of soil; one button battery can pollute 600 tons of water, which is equivalent to a person's lifetime drinking water. The harm of batteries is mainly concentrated on The heavy metals such as mercury, cadmium, nickel, and lead contained in it will most likely endanger human health through the food chain once it contaminates the soil, atmosphere, and groundwater.

Domestic waste can generally be divided into four categories: recyclable waste, kitchen waste, hazardous waste, and other waste. Recyclable garbage mainly includes five categories: waste paper, plastic, glass, metal and cloth. Food waste includes people's meal residues and food discarded in the kitchen. Hazardous waste includes waste batteries, waste fluorescent tubes, waste mercury thermometers, expired medicines, etc. These wastes require special safe handling.

Other waste includes bricks, ceramics, slag, toilet paper and other waste that are difficult to recycle in addition to the above categories of waste. Sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air. Garbage is only garbage when mixed together. Once sorted and recycled, it is treasure. Even the waste batteries called micro-killers can be turned into benefits.

Recycling garbage not only beautifies the environment, but reusing garbage can save the mining of new resources, thereby fundamentally reducing garbage. At that time, we can see that garbage classification creates a garbage-free society, a society that recycles resources, and all this only requires a little effort from us.

8. Eat garbage and spit out "black gold"

Garbage is not useless, and waste products are not necessarily useless. Faced with the reality of overflowing garbage, countries around the world no longer just focus on the old problem of how to control and destroy garbage. Instead, they have adopted a positive attitude and powerful measures to scientifically process and utilize garbage, and classify garbage as a maintenance The "second resource" for sustainable economic development.

Domestic waste pyrolysis and conversion treatment technology

For a long time, the main methods of domestic waste treatment have been landfill and incineration. How to prevent the waste from "besieging the city" and maximize the conversion of waste into waste? Bao, people have developed a new "domestic waste pyrolysis and conversion treatment technology." Garbage such as branches and plastics is fed into this device without prior classification, and enters the reactor and "gas tank" quantitatively through the conveyor belt. Liquid tar, solid carbon and combustible gas are spit out from another pipe. It can be said that what it "eats" is domestic waste and what "spits out" is three forms of renewable energy.

According to calculations: every 1 ton of domestic waste can produce 80 to 100 kilograms of low calorific value combustible gas, 10 to 20 kilograms of high calorific value combustible gas, 150 to 300 kilograms of organic carbon mixture, and 30 to 50 kilograms of tar. What is different from the imaginary garbage treatment plant is that there is no chimney and no pollutants are released. Even the moisture carried by the garbage itself is disinfected during the treatment process. After flowing into the factory's pool, it is recycled by the garbage treatment plant. The entire process does not release pollutants.

In fact, the "black gold" on the earth - coal, oil, and natural gas were formed from biomass millions of years ago through long-term underground fission. This technology shortens the cracking process that would have taken millions of years to just a few hours. If this technology can be widely popularized, it will greatly benefit mankind.

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Refining diamonds from exhaust gas

The U.S. Naval Research Laboratory used exhaust gas to refine diamonds. There is a wastewater treatment plant near the laboratory, which produces a large amount of waste gas-methane every day. Scientists from the laboratory placed the treated methane on a tungsten wire at a temperature of 2204°C. Due to the extremely high temperature, the carbon atoms in the methane separated and formed a diamond film. Diamond film has excellent physical and chemical properties, such as high hardness, high elastic modulus, high thermal conductivity, low friction coefficient, etc. It is widely used in various fields and is known as a new material in the 21st century.

9. Awakening the sleeping "urban mines"

Urban mines

There are 668 cities in my country, and the annual amount of urban domestic waste exceeds 100 million tons. Wasted household appliances contain a large number of substances that are harmful to the human body and the environment. The harm to the environment and the human body can be imagined. Starting from the recycling of metal resources, the city is compared to a mine that stores excellent mineral resources for development, pointing out a new way for the treatment of "misplaced resources". Various data confirm that from 1 ton of used mobile phones 400 grams of gold, 2.3 kilograms of silver, and 172 grams of copper can be extracted from it; 300 grams of gold, 1 kilogram of silver, 150 grams of copper, and nearly 2 kilograms of rare metals can be extracted from 1 ton of scrap personal computers. In contrast, in natural mines, although the amount of gold extracted from each ton of ore varies depending on the grade of the gold ore, under normal circumstances, only 5 grams of gold can be extracted from 1 ton of gold ore. Therefore, if my country's urban waste is collected and processed by classification and waste is recycled, the annual output value can be more than 250 billion yuan.

With the improvement of the level of waste resource treatment, people have enough reasons to believe that the sleeping "urban mines" will eventually turn into "golden mountains". Paying more attention to the development of "urban mines" is no less important than the development of natural mine resources, because the development of "urban mines" is more environmentally friendly, more ecological, and has more economic value.

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Japan’s “urban mines” are rich in resource reserves

Japan’s “urban mines” contain about 6,800 tons of gold, accounting for about the world’s total. 16% of its reserves are more than South Africa, which ranks first in gold production in the world. The amount of silver is about 60,000 tons, and the amount of indium is about 1,700 tons. The quantity ranks first in the world. Japan has achieved remarkable results in the development practice of "urban mines". For example, DOWA Ecosystem Recycling Company in Honjo City, Saitama Prefecture, Japan, mined 2.4 tons of gold and 50 tons of silver from "urban mines" in one year. Among them, 60 kilograms of palladium, 30 kilograms of rhodium, and nearly 100 tons of copper, lead, platinum and other rare and precious metal resources were extracted from lithium-ion batteries, nuclear reactor waste, and LCD TV panels.

10. Low-carbon cities—our new home

From the perspective of carbon emission sources, cities are centers of population, construction, transportation, industry, and logistics, and are also high-consumption centers. A place where energy and high carbon emissions are concentrated. According to statistics, the world's big cities consume 75% of the world's energy and account for 80% of the world's greenhouse gas emissions. Reflecting on the existing development model of cities and exploring the construction of low-carbon cities has become common knowledge around the world.

What is a low-carbon city? Is it just the fresh air, clean water, greenery, and comfortable living environment that people think of? A low-carbon city actually refers to a city that takes low-carbon economy as the development model and direction, the government management takes a low-carbon society as the model and blueprint for construction, and the citizens take low-carbon life as their concept and behavioral characteristics. The purpose of low-carbon city construction is to focus on energy utilization, supported by green transportation and green buildings, and guaranteed by the construction of policy mechanisms to achieve a resource-saving and environment-friendly society with sustainable development of economy, society, population, resources and environment. .

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An environmentally friendly island - Semso Island in Denmark

Semso Island in Denmark, with its clear water, blue sky and fresh air, has become the world's favorite The wonderland of Taoyuan. The island has achieved low carbon emissions through the development of wind energy, installation of solar panels, geothermal and biomass heating, which is more than offset by the impact of the "carbon footprint" due to the island's extensive use of clean energy. The island proudly claims to have reached "carbon neutrality."

11. Create a low-carbon motorized urban transportation model

Human activities require transportation, and urban transportation energy consumption accounts for more than 20% of the total urban energy consumption. It is the key factor between energy consumption and For large emitters, the choice of transportation is very important. The carbon emissions of taking a taxi are 7 times that of taking a bus and 14 times that of taking the subway. From this point of view, urban transportation planning and people’s travel habits will seriously affect carbon emissions.

Expo concept car - "Leaf"

BRT (Bus Rapid Transit, also known as rapid bus transportation, also known as rapid transit system) is a new type of bus system. The transportation mode, transportation volume and service level are between rail transit and ground conventional buses. The main features are: dedicated roads, closed platforms, horizontal climbing and landing, large-capacity vehicles, supplemented by signal priority at intersections, intelligent operation management, etc. This gives BRT the operational characteristics of rail transit, greatly improving passenger transport capacity and service quality. At the same time, because conventional public buses are used to drive on the road, capital construction investment is greatly reduced and the construction cycle is shortened. Generally speaking, the transportation capacity of BRT is close to that of light rail, but the investment is only one-third to one-fifth of light rail, one-tenth of that of subway, and the construction period is only one-third to one-quarter of that of subway. . Therefore, the rapid transit system is a new mode of transportation between the subway and ordinary bus systems that saves investment, is quick to produce results, and is more comfortable.

To develop low-carbon cities, the development of green transportation and the reduction of transportation energy consumption must be important links. In terms of the city's transportation development strategy, we must adhere to the policy of giving priority to public transportation and vigorously develop a public transportation system that is dominated by rail transportation and supplemented by large-capacity buses. At the same time, it is also necessary to guide residents to use public transportation as their preferred mode of travel, reduce their dependence on private cars, and provide citizens with more low-carbon travel options.

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Expo concept car-"Yiye"

In April 2010, the Expo concept car-"Yiye" was unveiled at the Shanghai World Expo. It integrates photoelectric conversion, wind power conversion, carbon dioxide adsorption and conversion and other natural energy conversion technologies. The roof of the car is shaped like a giant green leaf, with green veins like real leaves. The flow of energy can be seen through the "leaf veins". Dozens of crystal clear solar crystal sheets are arranged around the leaf veins, which can simulate green plants capturing carbon dioxide and water molecules from the air, releasing electrons under the action of microorganisms, and forming an electric current.

12. Green buildings, energy saving first

What is a green building? Is a building with a lot of greening a green building? Is a building made of many high technologies a green building? In fact, most people have a lot of misunderstandings about green buildings. The true meaning of green building is to provide people with healthy, comfortable and safe space for living, working and activities, while achieving efficient use of resources (energy saving, land saving, water saving and material saving) throughout the building's life cycle. Buildings with minimal impact on the environment.

Data show that the energy consumption of the global construction industry accounts for about 40% of the total terminal energy consumption. Nearly 2 billion square meters of new buildings will be built in China every year. As long as building energy efficiency is improved, the global construction industry can reduce emissions by 715 million tons of carbon dioxide in 2010, equivalent to 27% of the total global emissions in 2010. The ultimate goal of low-carbon buildings is energy saving and low carbon emissions. If the use of building materials is reduced through structural optimization, natural resources are fully utilized, and energy consumption in daily operation of buildings is reduced; if all levels of energy-saving technology product development and production pay attention to reducing carbon emissions, the construction industry will contribute to curbing global warming and protecting the earth. make a significant contribution to the homeland.

London Beddington Zero Carbon Community

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London Beddington Zero Carbon Community

London Beddington Zero Known as the UK's most innovative residential project, Carbon Communities' concept is to build harmonious communities that are energy-saving and environmentally friendly without sacrificing the comforts of modern life. It is a building designed according to energy-saving principles, with a 300mm-thick super-insulated outer skin, argon-filled triple-glazed windows, and timber window frames to reduce heat transfer. The south-facing glass sunroom is its important temperature regulator and uses a natural ventilation system. Therefore, Beddington community energy consumption basically comes from internal renewable energy.

13. Clean energy is the way out

The world’s proven oil, natural gas and coal reserves will be exhausted in the next 40 years, 60 years and 100 years respectively. Today, when the supply of traditional energy is in short supply, especially when fossil energy causes increasingly serious environmental pollution, the development of clean energy seems to be urgent. Increasing the proportion of clean energy in the energy structure is the future path for the development of low-carbon cities. The definition of "clean energy" is simple: any clean energy can be called "clean energy". Clean energy is not necessarily all new energy, and almost most of new energy is clean energy. In other words, some cleaned fossil energy can also become clean energy.

Among the uses of clean energy, the one with the fastest development, the most extensive commercialization, and the most economical application is wind power. Data released by the European Wind Energy Association and the Global Wind Energy Association show that the global installed wind power generation capacity reached 37,500 megawatts in 2009, equivalent to the power generation of 23 EPR nuclear power units. In 2009, global wind energy power generation increased by 31%. Wind energy, a clean energy source, can reduce carbon dioxide emissions by 204 million tons per year.

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The world's largest offshore windmill park

The Danish city of Copenhagen is a model of green energy and is famous for its wind power generation. *There are 5,600 windmills, providing 10% of Denmark’s electricity generation. In 2001, the world's largest offshore windmill park was built near the port of Copenhagen. This windmill park called "Middleglenden" has 20 huge white windmills. Each windmill is 64 meters high and has a diameter of 76 meters. The entire windmill park can provide power to 32,000 residents, equivalent to 3% of the electricity demand of the entire city of Copenhagen.

14. "China's Electricity Valley" on the road to low carbon - Baoding

On January 28, 2008, the World Wildlife Fund (WWF) officially launched the "China Electricity Valley" in Beijing. "Low Carbon Urban Development Project", Baoding, Hebei Province was selected as the first batch of pilot cities. Therefore, "China Electricity Valley" appears in front of people. It is a group of academicians of the Chinese Academy of Sciences and the Academy of Engineering and experts in the fields of optoelectronics and wind power who participate in research and development planning. Based on the new energy and energy equipment industry base, it has formed optoelectronics, With six industrial clusters including wind power, power saving, power storage, power transmission and transformation, and power automation equipment manufacturing, it is the only national-level new energy and energy equipment industrial base in China.

Solar LED street lights can be seen everywhere in Baoding City

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China’s first solar building

Located in Baoding High-tech City, Hebei Province The "Diangu Jinjiang International Hotel" in the development zone is the first building in my country to use solar power. This 25-story five-star hotel has a very special appearance. It has three exterior walls on the east, west and south, as well as the south facade, platform and lobby of the podium. The ceiling of the transparent skylight is all covered with a dense dark blue glass curtain wall. This glass curtain wall is a solar panel. The entire building uses it to generate electricity with a capacity of up to 0.3 megawatts, which is equivalent to a small power station.

"Baoding·China Electricity Valley" is dominated by the new energy equipment manufacturing industry and the electric power technology industry, and consists of the wind power industry, photovoltaic, solar thermal industry, power transmission and transformation and power automation industry, new energy storage industry, With the construction of six major industries, including high-efficiency energy-saving industry and biomass energy industry, it can be said that "China Electric Valley" brings together the future development hopes of low-carbon cities. In recent years, "China Power Valley" has sold a total of 500 megawatts of photovoltaic products and 5,089 megawatts of wind power products, which is equivalent to reducing carbon dioxide emissions by 10.64 million tons, making its own contribution to mitigating global climate problems.

Solar glass curtain wall of Diangu Jinjiang International Hotel

15. Earth Hour

Earth Hour is a global initiative , started in Sydney, Australia in 2007. At that time, more than 2 million homes and businesses voluntarily turned off their lights for one hour. One year later, with the advocacy and promotion of the World Wildlife Fund (WWF), "Earth Hour" has become a global and continuously developing event.

The 2011 "Earth Hour" event was held on the last Saturday in March (i.e. March 26), and the theme of the event changed significantly. First of all, the core theme of Earth Hour is no longer just climate change, but broader sustainable environmental actions. Secondly, in addition to turning off the lights for one hour, the "Earth Hour" activity has also changed from calling on everyone to respond to environmental protection to mobilizing individuals and social groups to voluntarily make an action change for environmental protection.

Comparison before and after the "Earth Hour" National Center for the Performing Arts on March 26, 2011

Climate change caused by excessive carbon dioxide emissions has now greatly threatened the survival of human beings on the earth. Only by changing global attitudes towards CO2 emissions can we mitigate the impact of this threat. Through such a simple and direct activity, "Earth Hour" unites the world and reminds people to stop and think about how to deal with global warming.