It’s clear that poorer people in the developing world are going to bear the brunt of climate change. A report presented at the European Geosciences Union meeting this month adds a new dimension: who is going to feel the effects when.

Oxford’s Luke Harrington produced a global map of “equivalent impacts”, which shows when a region will regularly experience extreme temperature or precipitation conditions that are clearly beyond normal climate variability. People in Africa, India and South America will experience these conditions at only 1.5° C global temperature increase above preindustrial levels, whereas mid-latitude regions, including North America and Europe, won’t see the same effects until warming of 3° C. The planet has already warmed 1° C.

Harrington’s map is an important tool for monitoring climate change impacts, one that could be useful in the pursuit of global climate justice.

Here’s Nature’s write up of the report: Clear signs of global warming will hit poorer countries first