Greenhouse Gas Emissions

Hydrogen will be one of humanity's key weapons in the war against carbon dioxide emissions, but it must be treated with care. New reports show how fugitive hydrogen emissions can indirectly produce warming effects 11 times worse than those of CO2.

Carbon dioxide may hog headlines as a climate change villain, but methane is a far more potent greenhouse gas. MIT has now demonstrated a new way to remove methane from the air, even at low concentrations, with a common clay used to make cat litter.

Nitrous oxide is a potent greenhouse gas – and now it looks like we may have underestimated how much is being released. A new study has identified the thawing Siberian permafrost as a huge, previously unknown source of nitrous oxide emissions.

You'll be hearing a lot more about ammonia as a clean fuel option in the race to zero carbon by 2050. In particular, it looks like a strong option for long-haul ships and trucks. So what is it, how is it made, and how does it shape up as green fuel?

Climate change can feel inevitable, but we’ve stepped up to the challenge before. New modeling shows how bad things would be if CFCs hadn’t been banned decades ago – depleted ozone would've increased UV exposure and stopped plants capturing carbon.

According to a new report issued by the United Nations' Intergovernmental Panel on Climate Change (IPCC), human-caused climate change will have dire consequences over the next 20 years.

A new study designed to gauge the scale of pollution in the globe's urban areas has concluded that around half come from just 25 cities, with so-called megacities in China and Japan proving to be particularly potent emitters.

More and more, insect protein is being suggested as a more sustainable alternative to meat. Humans aren't the only omnivores, though, which is why a new insect-based cat food should soon be hitting the market – and it won't be the only one.

Cattle are a major source of greenhouse gas emissions, mainly due to their methane-loaded burps. A detailed new study has found more evidence that feeding cows a small seaweed supplement can greatly reduce their methane emissions.

Scientists at University of California, Berkeley have leveraged 3D printing to produce a polymer lattice structure that can act as the backbone for low-carbon concrete that also boasts great strength and durability.

Scientists observed some notable declines in carbon dioxide emissions due to coronavirus lockdowns this year, however, a new report reveals concentrations of the greenhouse gas in the atmosphere are continuing to soar to record levels anyway.

Reaction Engines and Britain's Science and Technology Facilities Council (STFC) have completed a concept study into the practicality of using ammonia as a sustainable, low-emission jet aviation fuel.