Carbon bombs: Inside the 20 May Guardian Weekly

Uncovering the oil and gas mega-projects. Also: anger in Buffalo
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At last year's Cop26 conference, when nations grappled with closing the gap between emissions and targets to limit global heating to 1.5C, one key variable was unclear. Major oil and gas firms had numerous large-scale extraction projects planned or under way, but measurable data on the problem was not available. So, with several other journalists, the Guardian's environment editor, Damian Carrington, set about finding it.

A carbon bomb" is an oil or gas project that will result in at least a billion tonnes of CO₂ emissions over its lifetime. Getting hold of solid information about them is an absolute nightmare," says Damian. We're talking about future projects, and that means you're dealing with uncertainty. And the big oil and gas companies are ... not all that open about it."