emission

While tracing a burst of high-energy light identified in 2021, astronomers discovered the first astronomical event in which a long gamma-ray explosion (GRBs) and a rare kilonova emission coexisted.   This occurred about 1 billion light-years away, on the edges of the Milky Way.   The earliest stage of a kilonova was observed by the 3.6 m Devasthal Optical Telescope (DOT). Its crucial information fundamentally altered scientists' view of the origin of GRBs.   GRBs are extremely strong cosmic bursts of high-energy…

The nation is entering markets already crowded with international rivals, many of which have been investing billions for decades. China alone has spent more than $50 billion to establish control of virtually every segment of the solar supply chain. To compete with China's dominance in electric vehicle batteries, the European Union established an alliance in 2017 with the goal of ensuring that European firms are suppliers along the entire battery supply chain. To advance its goal of building domestic clean energy supply…

Environment Minister Bhupender Yadav on Thursday underlined the need for checking emission levels, which he said was crucial for initiating climate change. “Today we know that climate change is the most crucial of all other environmental challenges. Without cumulative emissions in check, success with other environmental challenges, even if they are achieved, will not carry lasting value," he pointed out.Yadav said this while addressing a session on Infrastructure in Small Island Developing States (SIDS), held at the…

The United Nations is betting that satellites could help the world catch up on emissions reductions. The organization has unveiled a Methane Alert and Response System (MARS) that, as the name implies, will warn countries and companies of "major" methane emission releases. The technology will use satellite map data to identify sources, notify the relevant bodies and help track progress on lowering this output. The initial MARS platform will focus on "very large" energy sector sources. It'll gradually expand to include less…

A view of the exhaust pipe of a car in Erfurt, Germany, Jan. 26, 2009. The European Parliament and EU member countries have reached a deal to ban the sale of new gasoline and diesel cars and vans by 2035. EU negotiators sealed on Thursday, Oct. 27, 2022, the first agreement of the bloc’s “Fit for 55” package set up by the Commission to achieve the EU’s climate goals of cutting emissions of the gases that cause global warming by 55% over this decade.…

When the new BS6 emission norms came into effect in April 2022, we saw several compact and midsize vehicles and even some luxury vehicles losing their diesel powertrains owing to heavy investment costs and decreasing demand for diesel-powered vehicles. Come April 1, 2023, an even stricter set of emission regulations under Real Driving Emission (RDE) norms will apply to all the vehicles sold in India. It is another dead-end for smaller diesel-powered vehicles, and the first car which is set to face the axe under the new…

Carbon pollution from California’s 2020 wildfires erased 16 years of the state’s greenhouse gas emission cuts, according to a new UCLA study. The fires were the state’s most destructive on record, burning 4.2 million acres, killing dozens of people and destroying thousands of homes. The study—published in Environmental Pollution—adds another statistic: the fires released roughly 127 million megatons of greenhouse gas emissions, or about twice California’s total emission cuts from 2003 to 2019. “What happened in 2020 was…

The U.S. Securities and Exchange Commission may pull back on a rule that would require companies to report greenhouse-gas emissions arising from their supply chains and the use of their products, according to panelists at The Wall Street Journal’s Pro Sustainable Business Forum on Thursday. So-called Scope 3 emissions including supply chains and product use often cover the bulk of a business’s emissions, and many companies say it is too costly and difficult to measure them. “There... The U.S.…

Imagine driving behind a diesel truck spewing clouds of smoke into the air while your new fully electric vehicle cleans up its carbon emissions. This dream may soon be a reality. A team of 35 students from the Eindhoven University of Technology in the Netherlands has created a Zero Emission Mobility (ZEM) vehicle – a fully electric, battery-powered EV that captures carbon dioxide (CO2) as it drives. The students were tasked with creating a zero-emission car, but they took it a step further, developing a unique…

Chiral Quasi Bound States in the Continuum for High-Purity Circularly Polarized Light SourceScientists demonstrate high-purity, highly directional, and high-Q circularly polarized light source from spontaneous emission to laser.An ultra-compact circularly polarized light source is a crucial component for the applications of classical and quantum optics information processing. The development of this field relies on the advances of two technologies, quantum materials and chiral optical cavities.Disadvantages of…