Scientists have developed a double-layered paint that reflects heat and keeps buildings cool; the city of Syndey now runs on 100 percent renewable energy; and Indian startups and billionaires are teaming up to fight Covid-19. More News below:
Four US companies have announced they will replace food brands that are rooted in racial stereotypes; African countries are setting up a common online marketplace to give the continent a fairer chance in the international scramble for medical supplies; and a Kentucky tattoo parlor is covering up hate tattoos for free.
TikTok is commissioning hundreds of institutions to produce educational videos for the platform; widely available drug dexamethasone cuts Covid-19 deaths; and scientists have created a new type of foil that can detect metabolites and nutrients in sweat. More good news below.