A satellite image shows a powerful atmospheric river hitting the Pacific Northwest in December 2023. Darker greens are more water vapor. Lauren Dauphin/NASA Earth Observatory

A series of atmospheric rivers is bringing the threat of heavy downpours, flooding,

Read more …What is an atmospheric river? A hydrologist explains the good and bad of these flood-prone storms...

Boulder, Colorado, passed stricter regulations against plastic bags at the beginning of 2024, banning them from all retail stores. The tougher rule builds on a 2013 local law that banned plastic bags from grocery stores and began charging shoppers 10 cents

Read more …Boulder strengthens rules against plastic bags – but do bans and fines actually reduce waste?

Infrastructure can increase vulnerabilities to coastal cities like New York. GlennisEhi/Getty Images

Sea level rise has already put coastal cities on notice thanks to increasing storm surges and even sunny day flooding at high tide. These challenges will

Read more …From New York to Jakarta, land in many coastal cities is sinking faster than sea levels are rising

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