Last 4 years hottest on record, UN confirms

The last four years were the hottest since global temperature records began, the UN confirmed Wednesday in an analysis that it said was a "clear sign of continuing long-term climate change."

Using aircraft as weather stations

To fly safely, aircraft need accurate updates on wind and temperature. But together, aircraft can also act as a sensor network that provides information to make weather models and predictions better, researchers at Delft ...

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