‘Worthless’: Chevron’s carbon offsets are mostly junk and some may harm, research says

Exclusive: investigation finds energy giant's efforts to offset its huge emissions rely on schemes with little impact

A new investigation into Chevron's climate pledge has found the fossil-fuel company relies on junk" carbon offsets and unviable" technologies, which do little to offset its vast greenhouse gas emissions and in some cases may actually be causing communities harm.

Chevron, which reported $35.5bn in profits last year, is the US's second-largest fossil fuel company with operations stretching from Canada and Brazil to the UK, Nigeria and Australia.