The past 12 months have seen our world enter new territory. Last year will go down as the first time that the global average temperature exceeded 1.5C above preindustrial times over a calendar year. We could crash permanently through the 1.5C guardrail within the next five years, and shatter the 2C limit as soon as 2034. This will almost certainly result in the tipping points for collapse of the Greenland and west Antarctic ice sheets being crossed, committing us to the drowning of coastal towns and cities.
In years to come, we will look back at this time and ask the same question that future generations will ask: why didn’t we stop this catastrophe?
