Author Topic: USA Politics (redux)  (Read 120316 times)

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Offline milk

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Re: USA Politics (redux)
« Reply #2940 on: October 14, 2021, 10:49:57 PM »
What climate change and sea level rise will do to American cities

..The space center in Houston surrounded by a moat; the famous beach in Santa Monica, Calif., completely submerged; a former sports stadium in Washington, D.C., turned into a bathtub — these are just some of the startling images of the future in America’s largest cities without action to limit climate change, according to new research by Climate Central, a research and communications nonprofit...

...Because of greenhouse gas emissions from burning fossil fuels, average global temperatures have already risen 1.2° Celsius (2.2° Fahrenheit) above the preindustrial era, but as glaciers and polar ice caps melt, there is a decades-long lag for sea level rise. So a team of researchers from Climate Central projected how much the waters will rise if the world reaches only 1.5°C of warming, which is the goal world leaders set forth in the 2015 Paris climate agreement...

...But even limiting temperature rise to 1.5°C will result in flooding in and around some key sites. Santa Monica, for example, will lose its beach at 1.5°C of warming, once sea level rise has caught up. The projections also show how much more the tide will rise in the heart of some of the world’s largest cities and most famous sites if that warming is doubled, which will happen within 100 years if nations take no action to combat climate change...

The United Nations’ Intergovernmental Panel on Climate Change (IPCC) has published the first part of its sixth assessment report (AR6), which will form the cornerstone of climate science for the years ahead.

“For global climate indicators, evidence for abrupt change is limited, but deep ocean warming, acidification and sea level rise are committed to ongoing change for millennia after global surface temperatures initially stabilise and are irreversible on human time scales (very high confidence).”