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IPCC

Percentages, Pauses and Politics (of Climate Change)

Rachel Kyte's picture
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 Physical Science BasisWhen it comes to climate change, there has been a lot of talk the past few days about percentages (scientists who point to human causes), pauses (has warming slowed), and what it all means for policy and politics.

But, let’s be clear.

The latest report from the UN Intergovernmental Panel on Climate Change provides conclusive new scientific evidence that human activities are causing unprecedented changes in the Earth’s climate.

It buries the hatchet on “is it real” – the scientists say that it is extremely likely (95% probability) that most of the warming since 1950 has been due to human influence.

It pushes back on the skeptics’ claims that global warming stopped in 1998, and, most of important of all, it confirms that human activity, left unchecked, will further warm the Earth, with dramatic effects on weather, sea-levels and the Arctic.

This major international assessment of climate change, adopted Friday by the world’s governments, paints a blunt, clear picture of the scale of the problem before us.