Scientists say climate negotiators have misjudged the effects of rising methane emissions and warn the potent greenhouse gas could imperil hopes of meeting mid-century climate targets.
A suspected offshore oil tanker leak has shuttered Israel’s more than 100-mile coastline and caused an ecological disaster that could require years of cleanup.
Thawing permafrost may have caused a disastrous diesel spill above the Arctic Circle and poses wider threats to Putin’s ambitious plans for military and industrial development in the region.