A few hours after the eruption of a volcano, around 45km south-west of Reykjavik, spectacular lava-heavy images on social media were becoming interspersed with text-only contributions from people far away. People with opinions.

Despite promising to reduce pollution, a central London masterplan has been met with opposition from air quality groups. Martin Guttridge-Hewitt attempts to navigate the confusion and asks if planning processes that fail to engage communities are valid in the climate age.