The Good News about Climate Change | 5-Minute Videos
Is climate change an existential crisis? Judith Curry, former Chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology, has spent her career studying this question. Her answer might surprise you.
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Script:
Letās start with the good news.
All things considered, planet Earth is doing fine. In fact, humans are doing better than at any other time in history. Over the last hundred years, when temperatures have warmed by about two degrees Fahrenheit:
Global population has increased by 6 billion peopleā¦
While Global poverty has substantially declined.
And the number of people killed from weather disasters has decreased by 97% on a per capita basis.
We are obviously not facing an existential crisis.
Anyone who tells you that we are is not paying attention to the historical data. Instead, they are concerned about what āmightā happen in the future, based on predictions from inadequate climate models, driven by unrealistic assumptions.
I offer this positive diagnosis after a lifetime of study on the issue. Until recently, I was a professor of climate science and Chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology.
But itās not all good news.
The biggest problem with climate change is not climate change, per se, itās how weāre dealing with it.
Weāre attempting to control the uncontrollable, at great cost, by urgently eliminating fossil fuels. Weāve failed to properly place the risks from climate change in context of other challenges the world is facing.
Climate change has become a convenient scapegoat. As a result, weāre neglecting the real causes of these problems.
There are countless examples, but let me give you just one.
Lake Chad in Africa is shrinking. Nigeriaās president Muhammadu Buhari blames it on you-know-what. āClimate change,ā he pronounced, āis largely responsible for the drying up of Lake Chadā¦ā
But itās not.
Yes, the initial water level decline was caused by long droughts in the 1970s and 1980s. But the lake has remained virtually empty over the past two decades, even while rainfall has recovered. During this time, rivers flowing into the lake from Cameroon, Chad, and Nigeria have been diverted by government agencies to irrigate inefficient rice farms.
In short, climate change has little to do with the declining water level of Lake Chad. Instead, bad human decisions are the cause. Climate Change is just a convenient excuse, hiding poor management and governance.
Blaming every major weather disaster on man-made global warming defies common sense, as well as the historical data record.
For the past 50 years, the global climate has been fairly benign. In the US, the worst heat waves, droughts, and hurricane landfalls occurred in the 1930sāmuch worse than anything weāve experienced so far in the 21st century.
Population growth, where and how people live, and how governments manage resources are much more likely to create conditions for a disaster than the climate itself. Weāve always had hurricanes, droughts, and floods, and we always will.
Maybe you think Iām being too cavalier about the dangers we face. Isnāt it true that 97% of scientists agree that humans are causing dangerous climate change?
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