Swedish climate activist Greta Thunberg attends a protest in London outside a major oil and gas industry meeting, warning that the "world is drowning in fossil fuels". "Behind these closed doors at the oil and money conference, spineless politicians are making deals and compromises with lobbyists from destructive industries, the fossil fuel industry," she tells protesters and media gathered outside the Intercontinental Park Lane hotel where the Energy Intelligence Forum is being held. SOUNDBITE