brilliance of some of the things we know how to do and will do. i am told by scientists, not by anybody in politics, but by scientists at 50% of the reductions we have to make to get to net zero by 2050, 2045, as soon as we can, 50% of those reductions are going to come from technologies that we don t yet have. a couple of categorical statements from john kerry. joining me now to discuss is michael mann, author of the new climate war and director of the earth system science center at pennsylvania state university. a battle scar campaigner. let me pick up on greta thunberg s response tojohn kerry.
we are putting trees on the ground which will be standing there into the 22nd century, and trees are something that we ve all cherished over the last difficult year, and outdoor space in general, so creating a new, ancient forest, as it were, seems entirely apt to celebrate her reign. royal mail staff have already begun planting trees around their workplaces. and three million free saplings will also be available to schools and community groups. everybody who has got - the opportunity to plant a tree, whether it is a single tree i at your school, or on a playing field, or in your garden, - or on your farm, should take this opportunity to celebrate her majesty sjubilee. . the aim is to get the whole country planting a tree for thejubilee. something that can survive and flourish for decades. daniela relph, bbc news, windsor great park. in most of the uk, we can now mix indoors and go inside pubs and restaurants. but for many, it s been the first time family and friends have been allowed
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to celebrate her reign. royal mail staff have already begun planting trees around their workplaces. and 3 million free saplings will also be available to schools and community groups. everybody who has got - the opportunity to plant a tree, whether it is a single tree i at your school, or on a playing field, or in your garden, - or on your farm, should take this opportunity to celebrate her majesty sjubilee. i the aim is to get the whole country planting a tree for thejubilee. something that can survive and flourish for decades. daniela relph, bbc news, windsor great park. now it s time for your questions answered. you ve been sending your questions about restrictions being eased. with me is our health correspondent
trees during her reign. it makes the green canopy project a fitting legacy to the world s longest reigning monarch. we are putting trees on the ground which will be standing there into the 22nd century, and trees are something that we ve all cherished over the last difficult year, and outdoor space in general, so creating a new, ancient forest, as it were, seems entirely apt to celebrate her reign. royal mail staff have already begun planting trees around their workplaces. and three million free saplings will also be available to schools and community groups. everybody who has got - the opportunity to plant a tree, whether it is a single tree i at your school, or on a playing field, or in your garden, - or on your farm, should take this opportunity to celebrate her majesty sjubilee. . the aim is to get the whole country planting a tree for thejubilee. something that can survive and flourish for decades. daniela relph, bbc news, windsor great park. this is outside source live