New space mission will measure how much heat Earth is trapping from climate change

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A new space mission will measure how much heat gets trapped in Earth’s atmosphere to help gauge whether humanity is making any progress in tackling the worst effects of climate change. 

The mission, called TRUTHS (for Traceable Radiometry Underpinning Terrestrial- and Helio- Studies), is currently being prepared by the European Space Agency (ESA) and its partners. It will study the so-called Earth energy balance — the difference between how much energy arrives at the planet from the sun and how much gets reflected back to space. The more heat Earth keeps, the warmer it gets, and it’s the dangerous greenhouse gases that create conditions for the planet to trap more of the incoming heat. 

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