Ukraine scientists navigate lockdown to reach Antarctica

Yuriy Otruba was preparing for his sixth scientific expedition to Antarctica when the coronavirus pandemic hit, shutting borders, grounding flights and locking down countries he needed to travel through.

Smog chokes coal-dependent Poland with no end in sight

Puffs of yellowish grey-and-black smoke billowing out of household chimneys create a blanket of smog choking the southern Polish mining town of Rybnik, one of the most polluted places in the European Union.

Greener spring, warmer air

Advanced leaf-out, or early sprouting and opening of leaves, is a direct response to climate change. In the northern hemisphere, leaf-out has advanced at a rate of 4-5 days per decade on average since 1980s, according to ...

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