How much time does man have to change the climate?

In the era of earth industrialization, with the development of human beings, natural problems have become a serious problem. According to the latest scientific report of Nature, we are short of 10 years. We must redouble our efforts to avoid the temperature rise of 1.5℃, which is not only a personal problem, but also a global human problem. It can be said that the climate has no "national boundaries".

No matter who you are, as long as you live on the earth, you will be affected. If all countries in the world still want to achieve the emission targets of the Paris Agreement, according to the latest data released by the United Nations, we will have to quadruple this work, so that we can hope to control the climate problem. Then let's see what the climate is like.

On the whole, the temperature rise of 1.5℃ has almost reached the "critical point". According to the IPCC, beyond this limit, we will become more and more terrible. Before 10, according to the original goal, we had 30 years to reduce greenhouse gases by half, and now this time has been reduced by two thirds.

We only have 65,438+00 years to limit the temperature rise to 65,438+0.5 C higher than the pre-industrial level, so if there is no change in the last 65,438+00 years, our planet will face more climate problems. This is a warning from climate scientists. For us, it is not only a small warning to the climate, but also a warning to the whole world. It also said that this is a global impact.

According to the research of scientific researchers, in a short period of 65,438+00 years, the gap has quadrupled. At the same time, Nature directly gives such data. If severe climate action is taken from 2065,438+00, we still aim at the emission level of 2℃. It is preliminarily estimated that by 2030, the average annual emission must be reduced by about 2%.

On the contrary, if emissions continue, it will be difficult to achieve this goal. In 2020, we only saw the global energy-related carbon dioxide emissions. This figure is the emissions that have stopped growing or 33 billion tons. Of course, this is the carbon dioxide emitted by others except wildfire, so if we want to calculate the overall carbon dioxide emissions, it must exceed 33 billion tons.

At the same time, according to scientific statistics, from 2008 to 20 18, the global annual emissions soared 14%. Obviously, our previous goals and commitments are totally inadequate. Of course, if measured by standardization, in fact, since 20 15, the global estimated global emissions in 2030 have only decreased by 3%.

At the same time, the greenhouse gas emissions of the United States and other countries have not changed in the past five years. In the next decade, this may be the last "deadline" given by the climate. Otherwise, the long-term goal of the Paris Agreement will be out of reach, and we will not have the next decade. Repeat three things: "We only have ten years, we only have ten years, we only have ten years".

We may be well aware of the impact of climate change. Weather changes such as high temperature, drought and heavy rainfall may become more and more extreme, and the development of marine storms is getting stronger and stronger, with more destructive power. So humans have seen the impact of climate.

Moreover, according to the report recently released by the United Nations, the biodiversity of organisms is becoming more and more fragile, and more and more organisms are gradually disappearing or becoming extinct. At the same time, coral reefs, tropical rainforests and other important ecosystems around the world have been destroyed, putting human society at risk. The problem of biological extinction warned by scientists may be happening, and the disappearance of nature is inextricably linked with global climate change. When all this happens, the threat of earth civilization will be even greater.

Does anyone else say that our earth has not changed? Of course, there may be different disputes on this issue. Some people may say, isn't it that our earth will enter a small glacier? This is indeed a controversial point, but from the current situation, at least there is no indication that the earth will move towards a "small glacier", so at most global warming will produce more extreme "weather".

Extreme cold weather may occur in some areas, but the probability of global entry into small glaciers can be said to be none or none, because there is no sign to explain this problem. On the contrary, the fact of global warming has become more obvious, so we still focus on reducing greenhouse gas emissions, so alleviating the earth is equivalent to saving the climate problem.