atmospheric sciences

Until now, one hypothesis suggested that life on Earth could have arisen from lightning striking a body of water. However, a new study claims that the synthesis of molecules necessary for the emergence of life could have originated from ‘micro-lightning’ in water droplets. According to the study, published in Science Advances, the formation of organic compounds with carbon-nitrogen bonds from gas molecules could be a possible mechanism for creating the basic components of life on the early Earth.

An international team led by researchers at the University of Copenhagen has detected a new class of extremely reactive chemical compounds in tha atmpsphere, the 'trioxides'. The challenge now is to understand the role of trioxides in climate and air quality. The result is presented in Science.

Japan's IBUKI greenhouse gas observation satellites (GOSAT) have just announced the detection of a sharp annual increase in the average atmospheric methane concentration in 2021, the largest since 2011. European (ESA) and US (NASA) space agencies, as well as ground stations, have also detected spikes.