CONSERVATION NEWS

In case you missed it: Spruce trees are creeping northward into the arctic tundra — a barren terrain where frigid temperatures have long prevented them from growing. The changing landscape could have huge implications for life on Earth, scientists say.

In case you missed it: Climate change is exacerbating existing ailments and causing people to suffer from new afflictions. Moreover, entire health systems are beginning to recognize that threats from climate change will have a big impact on their operations.

In case you missed it: A new study suggests that the consequences of crossing critical climate thresholds could be more severe than previously thought — including the collapse of polar ice sheets and death of coral reefs.

In case you missed it: Millions of salmon commute up Alaska’s Yukon River every fall in search of safe places to spawn. But as waters begin to warm, their populations have slumped to all-time lows.

In case you missed it: Brazil's rainforests are in serious trouble.