TED Talks on Instagram: "The housing crisis affects millions around the world and according to architect Olaf Grawert, there’s one contributor that is often overlooked. In his @TEDxBerlin Talk, he explains how demolishing buildings to make space for new ones destroys more than the memories they carry — it throws off the housing market and heats up the planet. He highlights an alternative that revalues the buildings we have, paving the way for a sustainable, affordable future. Visit the link in @