An energy expert explains the challenges of finding alternative natural gas supplies for Europe in case of a Russian cutoff over Ukraine.

Soaking up and storing CO₂ is not just a question of technology.

Rich countries like the UK have almost left coal power behind, but it’s not as easy for developing countries.

Misinformation about climate change has been spreading in other ways, and social media companies have been reluctant to stop it.

Of the big pledges so far at the UN climate conference, cutting methane could have the most immediate impact.

Coal is the dirtiest fuel source – eliminating it is a priority for tackling climate change.

Major international donors, including the US, China and UK, are pledging to stop funding fossil fuel projects overseas, but they aren’t making the equivalent cuts at home.

Four years after Hurricane Maria wreaked havoc on Puerto Rico, federal money to rebuild its electricity system is finally about to flow. But it may not deliver what islanders want.

The government’s failure to insulate housing stock has meant that households aren’t insulated from record energy prices.