Equatic is among a wave of start-ups exploring how the ocean could be harnessed to capture and store carbon. But not everyone is sure it's such a good idea.
Are beer, wine or spirits better for the climate? Jocelyn Timperley takes a look into her drinking habits to find the most environmentally friendly tipple.
From erecting seawalls to selling citizenship, vulnerable small islands are taking sometimes drastic measures to protect themselves from rising seas, storms and economic devastation.
In the Highlands of Scotland, a series of last-ditch efforts are being used to try to save the critically endangered capercaillie. Will it be enough to save this magnificent bird?
When electricity was first rolled out in New York in the late 19th Century, sparks flew between competitors. Today, the city is attempting to complete its electric evolution.
It stands metres high, takes a decade to flower, smells like death and draws huge crowds when it blooms. But scientists are still unravelling the baffling lifecycle of the titan arum.