This article discusses the record-breaking rain that recently fell in Greenland and the implications it has for the planet. The rain is the result of warm, moist air flowing up from south-west of Greenland and remaining for several days. This has caused temperatures to surpass freezing point, leading to more melting of the ice sheet and an increase in runoff of rainwater and meltwater into the oceans. This has created a number of positive feedback loops that can lead to tipping points and abrupt, irreversible changes in the climate system. The article highlights the need for urgent action to reduce emissions and global temperatures in order to avoid these tipping points.