Regional & National.
Friends of the Earth has identified 33 actions can take on climate change:
https://policy.friendsoftheearth.uk/insight/33-actions-local-authorities-can-take-climate-change
Wirral Environmental Network is your local Climate Action Group
https://takeclimateaction.uk/get-involved
Wirral Environmental Network is part of the Cool Wirral Partnership which Coordinates local action on climate change
https://www.wirral.gov.uk/about-council/climate-change-and-sustainability/cool-wirral-partnership
The Government has updated the National Action Plan on tackling climate change.
https://www.gov.uk/government/news/government-publishes-updated-plan-to-tackle-climate-change