There are a lot of questions, ideas and emotions about climate change. Whether you feel scared, curious or overwhelmed, What On Earth hears you. Laura Lynch explores your experiences, grapples with the challenges, and examines the potential solutions.
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It's an idea that's been framed as a simple solution to a warming climate – plant more trees. On both sides of the border politicians of all stripes have promised to plant billions and trillions of trees - but how feasible is it to deliver and what impact would it really have?