Greenhouse Gas Emissions

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.

As tasty as cows are, their greenhouse gas emissions aren’t quite so palatable. To help clean up the agriculture industry, Burger King has now announced it will start feeding its cows a new diet that can cut methane emissions by as much as a third.

Carbon dioxide is an all too common waste product of industry, belched into the air from smokestacks. Now, researchers have developed a new type of fluorinated membrane that can selectively filter CO2 out of flue gas at the point of release.

Everyone knows that walking on soft sand is more difficult than walking on a hard sidewalk. By the same token, MIT scientists are now suggesting that if road surfaces were to be made stiffer, large trucks would use less fuel.

Scientists at Pennsylvania State University have discovered that adding a single supplement to the feed of cows can cut their methane emissions by around 25 percent, without affecting their milk-producing capacity.

A new UN report, the Greenhouse Gas Bulletin, says that in 2018, the globally-averaged concentration of carbon dioxide (CO2) in the atmosphere was 407.8 parts per million (ppm), a new record high that hasn’t been seen in millions of years.

California-based Heliogen has reaching temperatures of more than 1,000° C (1,832° F) with its concentrating solar thermal system, expanding the technology's potential from electricity generation to various industrial processes.