Such a large accumulation of methane in a lake is unique, and has never been reached in any other lakes.
From its roots as an electric version of snake oil, by the 1930s vibrators were just another household electric appliance that could soothe your pains at the end of a long day.
The world runs on energy, so finding low-emission alternatives to fossil fuels is crucial. Wind and solar are cheap and abundant but can't do everything. But hydrogen fuel could complete the picture.
Climate change affects power plants in Indonesia, eventually disrupting energy supply to consumers.
There has been no progress in expanding national electricity grids in most African countries since 2016.
Democratic candidates are keen to burnish their climate credentials by calling for grand electric vehicle plans. But there are both economic and political reasons for going slowly.
Electric cars gets lots of attention, but in the developing world, electric two-wheelers have the potential to spread quickly – if batteries continue to improve on performance and cost.
Electrifying transport needs bigger changes than another high-end electric car.
Small-scale renewable energy projects can power rural areas not connected to the main grid. But investors may hesitate if future electrification remains unpredictable.
In sub-Saharan Africa there are more people with mobile phones than access to electricity, and their data could be useful.
The case for pragmatism, not dogma.
A lighting revolution is underway across Africa that's occurred largely without government or donor involvement.
The short term interests of investors could lead to long term problems in sub-Saharan Africa.
Kenya's inadequate electricity supply is due to an over-reliance on hydropower, high energy and infrastructure costs.
New technologies are developing with exponential velocity, breadth and depth. Their systemic impact is likely to be profound.
Rwanda has adopted a number of plans to improve its electricity output. There are valuable lessons other African countries can learn from it.
New Canadian prime minister Justin Trudeau brings a very different face to climate talks in Paris. Will it project its oil extraction tradition or show global leadership on emissions cuts?