By Jim Robbins, New York Times

Ponderosa pine and pinyon forests in the American West will die at an increasing rate as the world grows warmer, becoming less and less resilient when they are weakened by higher temperatures, according to new projections.

Although these forests now withstand short droughts, warming temperatures increasingly stress the forests, which means they will no longer survive the shorter droughts they once endured.

And future droughts will be hotter as the planet warms.

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