How the Earth's tilt creates short, cold January days

Above the equator, winter officially begins in December. But in many areas, January is when it really takes hold. Atmospheric scientist Deanna Hence explains the weather and climate factors that combine to produce wintry ...

How New York City is preparing for climate change

In 2008, New York City's Mayor Bloomberg brought together leading climate scientists, academics and members of the private sector to advise the city on adapting to the impacts of climate change. This group, called the New ...

Keeping a steady eye on sea level change from space

Over the course of nearly three decades, an uninterrupted series of satellites has circled our planet, diligently measuring sea levels. The continuous record of ocean height that they've built has helped researchers reveal ...

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