This is the best summary I could come up with:

“The main message is that relying on [carbon offset] certification is not enough,” said the study’s lead author, Thales West, an interdisciplinary ecologist and assistant professor at Vrije Universiteit in Amsterdam and a fellow at Cambridge’s Centre for Environment, Energy and Natural Resources.

The authors call for “urgent revisions” to the certification methods used to attribute avoided deforestation to these projects, pointing out major flaws in current practice.

Over the past few decades, carbon offsets have become increasingly ubiquitous, particularly in higher-income countries, where consumers can assuage their climate guilt by paying a little extra for a flight ticket or a rental car, with the understanding that their additional payment will go towards supporting a tree farm, for example.

Big, high-emitting companies like Delta, JetBlue, Disney, General Motors and Shell have all bought and sold huge amounts of carbon offsets in the name of climate action.

It’s an attractive business model for companies looking to “go green” without significant changes in their operations: purchase some carbon offsets to cancel out your emissions.

West said companies that are buying and selling carbon offsets that have been certified by third-party entities may not be aware that they’re misleading their customers—they might simply trust that the certification is legitimate.

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