We see that over the last few decades, global temperatures have risen sharply - to approximately 0.7℃ higher than our 1961-1990 baseline. The red line represents the average annual temperature trend through time, with upper and lower confidence intervals shown in light grey.
In the chart, we see the global average temperature relative to the average of the period between 19. To set the scene, let’s look at how the planet has warmed. 1 This link between global temperatures and greenhouse gas concentrations – especially CO 2 – has been true throughout Earth’s history. Human emissions of carbon dioxide and other greenhouse gases – are a primary driver of climate change – and present one of the world’s most pressing challenges.
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