For the first time ever, the Paris climate agreement has formed the basis of a major court ruling.
The project to expand London’s Heathrow airport was first proposed in 2009, and it has had a turbulent journey since. It was initially backed by a Labour government, canceled a year later, revived, then backed by a Conservative government in 2018. Proponents have touted the plan as a source of extra jobs, additional air routes, and fewer delays. The U.K. Department of Transport has estimated an economic benefit of £61 billion, or $79 billion, over the next 60 years.
