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Fossil Fuel Companies Knew How Hard Keeping to IPCC’s ‘Unprecedented’ 1.5C Limit Would Be — And Did Nothing

Fossil Fuel Companies Knew How Hard Keeping to IPCC’s ‘Unprecedented’ 1.5C Limit Would Be — And Did Nothing

The scientists are clear: “rapid, far-reaching and unprecedented changes in all aspects of society” are needed if the humans are going to prevent the world warming by more than 1.5°C above pre-industrial levels.

This news — emanating from the release of the Intergovernmental Panel on Climate Change’s (IPCC) mammoth new special report —  comes as a surprise to almost no-one. Least of all the fossil fuel industry, which has known for decades that the carbon budget that keeps that goal within reach has been rapidly depleting thanks to its products.

So how did we get here, to a place where plotting a path to keep planetary warming within this highly desirable limit requires changes on a scale for which “there is no documented historic precedent”?

Exxon Knew, Shell Knew

Fossil fuel companies have known for decades that their products would lead us to this point.

Back in 1982, Exxon published this graph, which shows a probable temperature rise of 1.5°C some time between 2030 and 2040:


Source: Graph from an internal 1982 Exxon briefing document

Today’s report confirms how scarily accurate that prediction is likely to be — it says that on current trends, the world is expected to wam by 1.5°C between 2030 and 2052. It also shows that the world has already currently warmed by about 1°C since pre-industrial levels thanks to human-caused greenhouse gas emissions.

Exxon wasn’t the only fossil fuel company to commit resources to understanding this problem in the early days. An internal document from 1988 shows Shell also knew back that fossil fuel emissions were likely to lead to 1.5°C to 3.5°C of warming. On current trends, they’d be right — under current policies, the world is expected to warm by about 3.1°C to 3.7°C.

…click on the above link to read the rest of the article…

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