This NASA Goddard chart (left) is the global average temp compared to the 1951-80 average. I gridded the orange bars for 1977 to 2019 (43 years), interpolated the temp for each year, built an Excel spreadsheet & graph and added an exponential trendline out 30 years to 2049 (right). The increase in global surface temp is 3.5 degrees C. This will be catastrophic for life on Earth!
Here is a description of what the world is like with a global temperature increase of 5.4 F (3 C) by the year 2050: At this point, the world’s ice sheets vanish; brutal droughts kill many of the trees in the Amazon rainforest (removing one of the world’s largest carbon offsets); and the planet plunges into a feedback loop of ever-hotter, ever-deadlier conditions.
Thirty-five percent of the global land area, and 55 percent of the global population, are subject to more than 20 days a year of lethal heat conditions, beyond the threshold of human survivability.
Meanwhile, droughts, floods and wildfires regularly ravage the land. Nearly one-third of the world’s land surface turns to desert. Entire ecosystems collapse, beginning with the planet’s coral reefs, the rainforest and the Arctic ice sheets. The world’s tropics are hit hardest by these new climate extremes, destroying the region’s agriculture and turning more than 1 billion people into refugees.
This mass movement of refugees — coupled with shrinking coastlines and severe drops in food and water availability — begin to stress the fabric of the world’s largest nations, including the United States. Armed conflicts over resources, perhaps culminating in nuclear war, are likely.
The result is outright chaos and perhaps the end of human global civilization as we know it.
WHAT CLIMATE COLLAPSE ASKS OF US
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