Carbon capture, the technology widely deemed vital to saving the planet from a climate disaster – but frustratingly slow to gain traction – could have a friend in geothermal power.
It appears that, when Arctic permafrost melts, it can release carbon dioxide gas into the atmosphere much faster than previously thought.
It's the wild card in the renewables vs. fossil fuels debate: What price to put on carbon dioxide, which exacts social costs that escape capture by the free market?
It isn't all solar panels, wind turbines and algae oil, people.
Human beings pumped out three percent more carbon dioxide last year than the year before, to reach an all-time high of 34 billion tonnes.
Methanol isn't new as a fuel – late in the 20th century it gained some traction, especially as a blend-in in gasoline, but it's faded since then as a transportation option.
Inconsistency of supply is one of the biggest drawbacks of renewables such as wind and solar.
Put simply: the wind doesn't blow all day, and the sun doesn't shine at night.
Algae are a large, diverse group of simple microorganisms that have lived on Earth for billions of years.
Engineers have found a way to cut the CO2 and energy footprint of cement by 97 percent - and the recipe's much cheaper, too.
We have manmade global warming to thank for the fact that we're not all shivering in an ice age, according to research from Cambridge University that's likely to prove highly controversial.
Scientists say they've found a better, cheaper way to remove carbon dioxide from smokestacks and other sources, including the atmosphere.
The appearance of the Antarctic ice sheets was triggered by a massive fall in the amount of atmospheric carbon dioxide, new research has found.
North American forests might be more use than expected at slowing the pace of climate change.
The global uptake of carbon by land plants could be much higher than previously thought, meaning that the carbon cycle models used to predict climate change could be wrong.
There's been a sharp rise in global CO2 emissions over the last ten years, despite reductions by industrialized countries.
Good news, for once: new research indicates that, for polar sea ice at least, there's no 'tipping point' from which recovery is impossible.
Breeding deeper-rooted crop plants could dramatically lower CO2 levels in the atmosphere, a University of Manchester scientist claims.
After 10,000 fire-free years, the Arctic tundra is again experiencing wildfires, and they're contributing significantly to the world's carbon dioxide levels.
As carbon dioxide in the atmosphere increases, the soil releases ever more of two other potent greenhouse gases, new research has found.
Hydrogen could end up playing a big role in the world’s future energy production.