The United Nations has, for the first time, acknowledged that the world will overshoot its target of limiting global warming to 1.5°C above pre-industrial levels, marking the failure of the 2015 Paris Agreement pledges. The world is now expected to warm to 1.5°C above pre-industrial levels within the next few years, according to a report from the UN Environment Programme. Even if all climate commitments are met, the world is expected to warm by at least 1.8°C, the report states. The report was released shortly after a summer in…