Impactscommons.wikimedia.org Melting sea ice may mean the end of driftwood in Iceland Driftwood floats thousands of kilometers from Siberia to Iceland, but it may drift no longer by 2060 due to climate change.
Causescommons.wikimedia.org Tree-ring research may help to understand climate change Armed with the world's largest collection of tree rings, scientists are looking for clues into climate change.
Impacts www.nytimes.com Chronicles of the rings: What trees tell us Studying the historical data stored in centuries-old trees is a burgeoning field, with labs around the world learning more about historical patterns of weather and climate and the effects on humans.
In the crucial swing state of Pennsylvania, new poll finds 90% of respondents support stricter fracking regulations
As Biden prepares to block the sale of U.S. Steel to Nippon Steel, pollution concerns persist in Pennsylvania
