As Earth faces the worst-case scenario triggered by climate change and pollution, business leaders, politicians, and celebrities are calling to plant billions, maybe even trillions of trees, to curb climate change. That, say scientists, could really make a huge difference. ...

Hot summer days in a city can be a living hell due to increased heat stress. But it shouldn’t be like this at all. According to a new study, just one tree can help cool down a lot a city ...