The mission to detect sources of methane from space, a project the Government has contributed $26 million to, has been delayed for a year. PHOTO/Stuff

In our weekly round-up of the best climate coverage in local media: Hapū and Greenpeace head back to court for stricter hydrogen rules; the moral problem with turning passenger rail into an exclusive luxury; and is cutting transport emissions by 64% still a priority for Auckland under the new mayor?