MethaneSat is a new tool for measuring emissions of the powerful greenhouse gas into the atmosphere. The project was launched in 2018 during a TED conference cycle and was supported in particular by the United Nations special envoy for climate Michael Bloomberg.

It was funded by philanthropic donations including Amazon founder Arnold Ventures' Bezos Earth Fund and the Robertson Foundation. “ In total, building and launching the satellite is $88 million, ” says Alba Lorente, the scientist responsible for monitoring methane for…