In our 250th edition, we ask just how well the fight against climate change is really going

In this week’s newsletter: We began writing Down to Earth in 2021, but the global political, economic and environmental landscape has changed drastically in the past five years Don’t get Down to Earth delivered to your inbox? Sign up here The Cop26 UN climate summit in Glasgow in 2021 represented a high-water mark in climate diplomacy, and in hope for global unity. Two weeks in Scotland that year resulted in all countries affirming they would strive to limit global heating to 1.5C, with most setting net zero goals and national plans to cut greenhouse gas emissions, halt deforestation, protect nature and boost renewable energy. It wasn’t perfect: the plans would still result in about 2.8C of heating, though they agreed to work on strengthening them, and a commitment to phase out coal was weakened at the last minute to a phase down instead. But the direction of travel was clear: the whole world agreed on how to fight the climate crisis. The Paris agreement of 2015 bound countries to keep temperatures “well below” 2C above preindustrial levels, with 1.5C as an aspiration, but at Glasgow the 1.5C limit – in line with scientific advice, which warns of dire consequences beyond that thres