#greenhouse-gas-emissions

#greenhouse-gas-emissions

When a fossil fuel is combusted, it releases energy, which boils water, which turns to steam, which drives a turbine, which generates electricity. This is an almost comically inefficient process, requiring immense amounts of material: more than 8bn tons of coal and 4tn cubic metres of fossil gas every year. And given the basic chemistry of combustion, it's unavoidable that burning all this stuff leads to an immense buildup of carbon dioxide in the atmosphere.

As fossil-fuel derivatives, plastics are made of refined carbon. By 2015, about 6.3 billion tonnes of plastic waste had been generated, with around 79% of this accumulating in landfills or the natural environment, where it breaks into ever smaller pieces. Each year, plastic production increases exponentially: the total weight of carbon in plastic has surpassed the mass of all animals combined, and is likely to equal the mass of all bacteria by 2095 (see 'Litter legacy').

Food banks can help prevent food waste by rescuing unsold food from grocers and retailers, thereby redistributing it to families in need.

It is critical that federal policymaking is informed by the best available scientific evidence. Decades of climate research have yielded expanded understanding of how greenhouse gases affect the climate.

Martinez et al. tested three different Roman concrete recipes with varying slaked lime-to-pozzolan ratios (1:2, 1:3, and 1:4), and assessed greenhouse gas and air emissions for each production stage based on known Roman construction practices. The results surprised the scientists. Per volume of concrete, the production process for Roman concrete ended up emitting as much and, in some cases, more CO2 than modern formulations.

The Complete Streets project along Richmond Street aims to lower car speeds and improve pedestrian safety through various installations including raised intersections, corner extensions, and flashing crosswalk signals.

Training the 123 billion parameter model produced approximately 20 kilotons of CO2 equivalents and consumed 281,000 cubic meters of water, equivalent to roughly 112 Olympic-sized swimming pools.

The International Court of Justice has issued an advisory opinion stating that climate change is an urgent and existential threat, primarily caused by human activities.

For Wopke Hoekstra, the EU's climate commissioner, that era is over. Europe would still lead, he said, but other countries must come forward too.

MethaneSAT, designed to evaluate greenhouse gas emissions with 'unprecedented resolution,' has disappeared in space, affecting climate change efforts supported by multiple organizations.

If you thought the city of Austin already had a program to install rooftop solar systems on its municipal buildings, you weren't alone. Many others believed the same.

"I think this is one of those key moments that is extremely upsetting and yet super predictable, which is that the energy planning and the poor decisions that get made five, eight years prior to that now are starting to show up in those supply mixes."

California's Cap-and-Trade program has raised $33 billion since 2014, directing funds to both combat climate change and support communities, primarily focusing on low-income areas.

The vote comes as the Trump administration has begun the process of undoing scores of Biden's environmental and climate policies, while promoting fossil fuels such as oil, gas and coal.

In a recent study, researchers found that planting soybeans just a few weeks earlier can significantly enhance yields while reducing greenhouse gas emissions, particularly nitrous oxide.

Embodied carbon, associated with materials and construction processes, can account for up to half of a building's lifetime environmental impact.