Rewilding: 'We need to heal up what we've done to nature' 17 May 202117 May 2021 Last updated at 05:33 Meet the kids on a rewilding mission to help nature There is a lot of focus right now on looking after the planet and tackling climate change, and one way of helping to do that is rewilding. The first ever World Rewilding Day took place in March this year, to raise awareness of the power nature has to heal itself. You might not have heard of rewilding before but it is an important topic and many environmentalists, including Greta Thunberg and Sir David Attenborough, support the idea.