NASA: Global warming has accelerated the melting of Antarctic glaciers, and Hawking's prediction may come true.

One of the saddest things in the world is that people still think that global warming is a scam. Global warming has become a global problem and an irreversible trend. Although the current impact will not be too bad and its scope can be controlled, it does not mean that we can relax our vigilance and not take effective measures to alleviate global warming.

More and more evidence shows that global warming is a fact, not a scam. It is completely foreseeable that if it is serious, terrible things may happen in the next few decades. Scientists say that the global temperature is rising, the melting speed of polar glaciers is accelerating, and the sea level will rise by more than 1 meter in the future.

From the data point of view, in the past 20 years, the Denman Glacier has shrunk inward by nearly 5 kilometers, and the melting glacier weighs 268 billion tons. In addition, the collapse of the polar ice shelf occurs from time to time. Every time the ice shelf collapses, the glacier area will decrease and the ocean ice floes will increase. With the increase of seawater temperature, ice floes will gradually melt, which will not only lead to the rise of sea level, but also limit the predation range of marine life.

NASA has also said that human beings need to take corresponding measures as soon as possible to slow down global warming. If the trend is not contained, the sea level will rise by1.5m with the melting of Denman Glacier. Global warming has a huge impact and serious consequences. It is not difficult to find that extreme weather conditions and even abnormal weather have appeared in many areas due to changes in climate and environment. For example, it often rains heavily in areas that are dry all the year round. It didn't rain where it should have rained, which led to the mountain fire. Mountain fires in Australia are an example.

This situation can be clearly felt around us, especially our friends in Guangdong. The past few days have been difficult and the weather has been very hot. It never rains whenever we feel that wind and rain are coming. This weather is really unpredictable. Moreover, in the past six months, the number of rains has been few and far between, resulting in drought in many places. Some cities even use power rationing to alleviate the excessive use of electricity. And judging from the bumper harvest of litchi this year, it rained too little this year.

In this case, how can the global temperature not rise? Today, Antarctica is the largest fresh water source available to human beings, with an ice cover of 24.5 million cubic kilometers, accounting for 90% of the global glaciers. However, in recent years, the temperature has gradually increased. Last year, the temperature in the Antarctic fringe broke the record, reaching 38 degrees Celsius. Under such a trend, Antarctic glaciers will inevitably be affected. However, scientists have found that there is a huge ridge attached to the Denman Glacier, which can slow down the rate of glacier loss to some extent.

However, the situation remains grim. Last year, scientists measured the average temperature of the Antarctic at 20.7 degrees Celsius, breaking the record for many years. As soon as the temperature rises, the glacier will melt faster, even if the ridge of Denman Glacier blocks it, it will still be of no help. In the past 50 years, Antarctica has lost nearly 90% glaciers, most of which have disappeared in the past ten years. It's really scary.

Global warming is a global problem, which cannot be solved by an individual or a country. Unfortunately, not everyone thinks this is a disaster and has no awareness of climate protection. It seems that the meaning of "the oneness of human destiny" is not well understood. However, with the progress of the times, people's awareness of environmental protection is also strengthening, and more and more countries and individuals are beginning to join the team to protect the climate and the environment.

Finally, we really need to deeply understand the seriousness of climate and environmental problems. As Hawking said: "If human beings don't take measures to curb global warming, then the earth will be destroyed and become another Mars." If humans don't act, I'm afraid Hawking's words will come true.