The British Isles is home to a clutch of Green parties, united by their common environmentalist purpose and geographical location, but organisationally divided. Now, the Green Isles Alliance has been launched in a bid to enable the parties to act together to advance political goals.

Alan Story looks back on the enduring relevance of the 1932 mass trespass at Kinder Scout in Derbyshire
Three key councils to look out for ahead of the local elections on Thursday 2 May
The environment needs to be considered in all political and economic discussions – not sidelined as a separate issue
Socioeconomic development and the attitude of mainstream parties are key to Green success, according to Oxford study
EU candidate Gina Dowding explains how a vote for the Greens is a vote for change
Matthew Browne looks back on a historic night for the Green Party and ahead to a bright future
Molly Scott Cato says the time is now to move to a proportional voting system
German Green MEP Terry Reintke makes the case for a European Minimum Income Directive