Cooler states now forced to grapple with extreme heat

As temperatures soared into the 90s, the heat and humidity hit the concrete in Astoria, Queens, and bounced into the air. People moved along the scorched sidewalk slowly, their clothes drenched with sweat.

Lichen partnerships challenged by changes in the Northwoods

Lichen, which people may think of as a single organism, is in fact a community of several species that depend on each other for survival. Lichen symbiosis includes at least one fungus and one alga, along with other fungi ...

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