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2021 Year in Review: Five Stories of Clean Energy Progress

Union of Concerned Scientists

Lots of stories of clean energy progress caught my eye for 2021. The end of the year can be a fine time for taking stock, and that’s true in the energy space just as in our personal lives. Here are five of them–about renewable energy technologies and markets that seem particularly worthy of note and […].

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2021 Was One of the Deadliest and Costliest Years for Climate Disasters

Union of Concerned Scientists

UCS Climate and Energy program policy director Rachel Cleetus breaks down the National Oceanic and Atmospheric Administration's latest report on costly, dangerous climate-related disasters in 2021.

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2021 Election Preview: New York Considers Right to Clean Water

Circle of Blue

By Brett Walton, Circle of Blue – October 26, 2021. The post 2021 Election Preview: New York Considers Right to Clean Water appeared first on Circle of Blue. In Pennsylvania, where the constitution already recognizes environmental rights, the state Supreme Court has used the provision to strike down parts of state law.

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2021 Election Preview: The Expensive Battle in Maine over Hydropower Imports

Circle of Blue

By Brett Walton, Circle of Blue – October 28, 2021. The post 2021 Election Preview: The Expensive Battle in Maine over Hydropower Imports appeared first on Circle of Blue. The transmission line, New England Clean Energy Connect, received all its state and federal permits and began construction earlier this year.

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2021 Election Recap: New York Voters Approve Clean Water Constitutional Amendment

Circle of Blue

By Brett Walton, Circle of Blue – November 3, 2021. The post 2021 Election Recap: New York Voters Approve Clean Water Constitutional Amendment appeared first on Circle of Blue. Voters in Boise and Virginia Beach authorized infrastructure spending plans that exceed a half-billion dollars.

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How Much Transit Investment Is Needed to Get Back to “Normal”?

Union of Concerned Scientists

Thats a big number with consistent growthweekly ridership grew from April 2020 to 2021 by 101%, 2021-2022 by 54%, 2022-23 by 6%, 2023-24 by 17%, and 2024-25 by 12%. In 2025, they have made advances in resolving their workforce shortage and are making their first noticeable expansion to service since 2021.

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The AMOC is slowing, it’s stable, it’s slowing, no, yes, …

Real Climate

Figure 2 Comparison of observed and simulated annual mean surface temperature change for 1C global warming (IPCC, 2021, Figure SPM.5). 2015 used surface height data from satellite, and the Worthington et al 2021 reconstruction uses a water mass regression based on RAPID data. The reconstruction by Frajka-Williams et al.

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