Boris Johnson, speaking to the UN, told them that it is time for humanity to grow up, and the COP26 summit leaders in November must be the turning point. He warned that global temperature rises were already inevitable, but called on his fellow leaders to commit to major changes to curb further warming in four areas - coal, cars, cash, and trees. He added, ‘Countries must take responsibility for the destruction we are inflicting, not just upon our planet but ourselves. It's time for humanity to grow up.’ Mr Johnson praised China’s pledge to stop building coal-fired energy plants abroad and called on them to also end domestic coal use (they produce 28% of global greenhouse gas emissions). The Prime Minister made a series of calls for action to his fellow leaders, adding, ‘We have the tools for a green industrial revolution, but time is desperately short.’