Climate Change

NASA satellites see upper atmosphere cooling and contracting due to climate change

NASA satellites see upper atmosphere cooling and contracting due to climate change

The sky isn't falling, but scientists have found that parts of the upper atmosphere are gradually contracting in response to rising human-made greenhouse gas emissions.

Combined data from three NASA satellites have produced a long-term record that reveals the mesosphere, the layer of the atmosphere 30 to 50 miles above the surface, is cooling and contracting. Scientists have long predicted this effect of human-driven climate change, but it has been difficult to observe the trends over time.

"You need several decades to get a handle on these trends and isolate what's happening due to greenhouse gas emissions, solar cycle changes, and other effects," said Scott Bailey, an atmospheric scientist at Virginia Tech in Blacksburg, and lead of the study, published in the Journal of Atmospheric and Solar-Terrestrial Physics. "We had to put together three satellites' worth of data."

Together, the satellites provided about 30 years of observations, indicating that the summer mesosphere over Earth's poles is cooling four to five degrees Fahrenheit and contracting 500 to 650 feet per decade. Without changes in human carbon dioxide emissions, the researchers expect these rates to continue.

New Climate Maps Show a Transformed United States | ProPublica

New Climate Maps Show a Transformed United States | ProPublica

According to new data from the Rhodium Group analyzed by ProPublica and The New York Times Magazine, warming temperatures and changing rainfall will drive agriculture and temperate climates northward, while sea level rise will consume coastlines and dangerous levels of humidity will swamp the Mississippi River valley.

Taken with other recent research showing that the most habitable climate in North America will shift northward and the incidence of large fires will increase across the country, this suggests that the climate crisis will profoundly interrupt the way we live and farm in the United States. See how the North American places where humans have lived for thousands of years will shift and what changes are in store for your county.

What is going to happen in the next 30 years, something we should accept as adults and not deny, while focusing on harm reduction whenever it makes sense from both an environmental and social perspective.

I think a lot about Climate Change Action, but I often wonder at what cost

I think a lot about Climate Change Action, but I often wonder at what cost

I think this is a point that needs to made and not glossed over. If you want to transition the energy system, that fine, but there is going to be real human and environmental costs to doing that. There is going to be enormous amounts of political power used and abused, community destroyed, serious environmental derogation. Maybe it’s worth it as climate change will be rather bad, but we should proceed with caution.