Rich nations are still spending $100 billion a year on fossil fuels, despite climate pledges.
The value of oil hasn't been this high since November 2014.
Prime Minister Jacinda Ardern has announced a national pledge with the aim of tackling climate change.
2017 was a big year for the fund - which is already the largest in the world.
Although we typically picture pollution as coming directly from cars or power plants, a large fraction of air pollution actually comes from chemical reactions that happen in the atmosphere.
Governments have been forced to accelerate reforms.
Some countries may be phasing out coal, but production of the fossil fuel has more than doubled over the past four decades.
The World Bank will no longer finance upstream oil and gas projects after 2019.
Norway's central bank has recommended that the Ministry of Finance remove oil and gas holdings from its $1 trillion (£760 billion) sovereign wealth fund.
People across northern China are preparing for their first winter with gas heating - part of a government effort to wean the nation off dirty coal and improve the country's notoriously ba...
An engineer has discovered a way to turn liquid oil into spill-resistant pellets with air capsules in their core for buoyancy.
Turkey has managed to keep the oil and gas flowing, but for how long given a more fractured Middle East and a worsening of relations with Europe?
The European energy market is going through a significant transformation. Ukraine will play a central role in the region's energy future. Here's why.
Associate professor Mohammed Nuruzzaman explores the situation in the region after Saudi Arabia, United Arab Emirates, Bahrain and Egypt decided to break off ties with Qatar.
As the world shifts away from crude oil, Saudi Arabia must make use of solar resources and improve energy efficiency – its young generation can lead the way.