University of the United States earth temperature in the future or rise 3 to 7 degrees Celsius hit5杨帆

The American College of research: the temperature of the earth or future rise 3 to 7 degrees Celsius – Beijing, Beijing, September 28, according to foreign media reports, on the surface temperature of the earth in a long time span, even if atmospheric greenhouse gas emissions remain at the current level, the future of the earth’s average temperature may rise 3 to 7 degrees Celsius, and the hot degree of Earth humanity will be unbearable. According to reports, the United States Environmental and resources interdisciplinary project Schneider (Carolyn Snyder) by reconstructing the global average surface temperature over the past 2 million years, this conclusion. The new data show that the doubling of atmospheric carbon dioxide, the world’s highest temperature can even rise 9 degrees Celsius, this increase is enough to make the ice melt, sea level rise of tens of meters. The researchers said, even if the earth’s temperature rise is only 3 degrees Celsius, if things go on like this will lead to more storm surges, sea level rise, while high temperature weather, severe floods and other various climate disasters. Schneider from the 59 marine sediment cores extracted more than 20 thousand sea surface temperature data sample, in 1000 for the interval reconstruction over the past 2 million years, the global average surface temperature, and the use of different climate models to infer trends. The study established the relationship between the earth’s temperature and the excessive accumulation of greenhouse gases in the atmosphere, the relationship between the two in the past 800 thousand years, especially during the ice age. The ice age cycle occurs about once every 100 thousand years. The United Nations Intergovernmental Panel on climate change (IPCC) had pointed out that global warming should not exceed 2 degrees Celsius before the industrial revolution. In December 2015, 195 countries around the world to the United Nations Framework Convention on climate change "" in French Paris, countries pledged to strengthen the response to the threat of climate change, the goal is to the end of this century the global temperature rise of 2 degrees Celsius in the pre industrial level, and strive in 2100 before the implementation of greenhouse gas emission targets net zero. It is reported that this assessment report has been published in the scientific journal "nature" 26.相关的主题文章: