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Climate change increased temperature, reduced the amount of precipitation, decreased snowpack and increased the ability of air to soak humidity, helping to create arid conditions. As of 2021 the drought was the most severe in the last 500 years. [65] As of 30 June 2021 61% of continental USA were in drought conditions.
Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. [32] Global warming—used as early as 1975 [33] —became the more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate. [34] Since the 2000s, climate change has ...
The scientific community has been investigating the causes of climate change for decades. After thousands of studies, the scientific consensus is that it is "unequivocal that human influence has warmed the atmosphere, ocean and land since pre-industrial times."
U.S. climate envoy John Kerry said on Monday that the crisis in Ukraine is going to be a "defining moment" for this century, saying the stakes "could not be higher," even if the world has to live ...
As the latest report from the United Nations Intergovernmental Panel on Climate Change makes clear, while the planet has so far seen an average temperature rise of 1.2 degrees Celsius and will ...
After three consecutive years of almost no rain, the East African country of Somalia is in the grips of its worst drought in more than 40 years. Experts say conditions are so dire for the nation ...
The climate change policy of the United States has major impacts on global climate change and global climate change mitigation.This is because the United States is the second largest emitter of greenhouse gasses in the world after China, and is among the countries with the highest greenhouse gas emissions per person in the world.
For details on climate change in North America, please see: Climate change in Canada; Climate change in the Caribbean; Climate change in Greenland;