One of the main themes at the 2020 World Economic Forum in Davos, Switzerland, is sustainability and how to deal with the climate crisis. However, not everyone has the same vision of the future of the planet. In his speech, US President Donald Trump decried the "climate prophets of doom" and called for a rejection of "predictions of the apocalypse". This is juxtaposed against climate activist Greta Thunberg’s message that "our house is still on fire".