Saturday, November 30, 2019

Climate Crisis: Another Perspective

Why Apocalyptic Claims About Climate Change Are Wrong Few have underscored the threat more than student climate activist Greta Thunberg and Green New Deal sponsor Rep. Alexandria Ocasio-Cortez. The latter said, “The world is going to end in 12 years if we don't address climate change.” Says Thunberg in her new book, “Around 2030 we will be in a position to set off an irreversible chain reaction beyond human control that will lead to the end of our civilization as we know it.” ........... no credible scientific body has ever said climate change threatens the collapse of civilization much less the extinction of the human species ......... It’s not like climate doesn’t matter. It’s that climate change is outweighed by other factors. Earlier this year, researchers found that climate “has affected organized armed conflict within countries. However, other drivers, such as low socioeconomic development and low capabilities of the state, are judged to be substantially more influential.”............... but it’s also true that economic development has made us less vulnerable, which is why there was

a 99.7% decline in the death toll from natural disasters since its peak in 1931.

.......... In 1931, 3.7 million people died from natural disasters. In 2018, just 11,000 did. And that decline occurred over a period when the global population quadrupled. ........ IPCC estimates sea level could rise two feet (0.6 meters) by 2100. Does that sound apocalyptic or even “unmanageable”? ......... Consider that one-third of the Netherlands is below sea level, and some areas are seven meters below sea level. You might object that the Netherlands is rich while Bangladesh is poor. But

the Netherlands adapted to living below sea level 400 years ago.

............ Humans today produce enough food for 10 billion people, or 25% more than we need ........ The United Nations Food and Agriculture Organization (FAO) forecasts crop yields increasing 30% by 2050. And the poorest parts of the world, like sub-Saharan Africa, are expected to see increases of 80 to 90%. ............ Wheat yields increased 100 to 300% around the world since the 1960s, while a study of 30 models found that yields would decline by 6% for every one degree Celsius increase in temperature............. Rates of future yield growth depend far more on whether poor nations get access to tractors, irrigation, and fertilizer than on climate change, says FAO.......... By 2100, IPCC projects the global economy will be 300 to 500% larger than it is today. Both IPCC and the Nobel-winning Yale economist, William Nordhaus, predict that warming of 2.5°C and 4°C would reduce gross domestic product (GDP) by 2% and 5% over that same period............. Climate change may threaten one million species globally and half of all mammals, reptiles, and amphibians in diverse places like the Albertine Rift in central Africa, home to the endangered mountain gorilla.......... Of the 10 variables that influence fire, “none were as significant… as the anthropogenic variables,” such as building homes near, and managing fires and wood fuel growth within, forests......... “If you want to minimize carbon dioxide in the atmosphere in 2070 you might want to accelerate the burning of coal in India today,” MIT climate scientist Kerry Emanuel said. ......... “It doesn’t sound like it makes sense. Coal is terrible for carbon. But it’s by burning a lot of coal that they make themselves wealthier, and by making themselves wealthier they have fewer children, and you don’t have as many people burning carbon, you might be better off in 2070.” .........

the extreme rhetoric is making political agreement on climate change harder.

....... “We shouldn’t be forced to choose between lifting people out of poverty and doing something for the climate.” ....... Happily, there is a plenty of middle ground between climate apocalypse and climate denial.


















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