Atmospheric oxygenation three billion years ago

Oxygen appeared in the atmosphere up to 700 million years earlier than we previously thought, according to research published today in the journal Nature, raising new questions about the evolution of early life.

Precise remote sounding for better climate models

The water budget of the troposphere, the bottom layer of the Earth's atmosphere, determines the weather and plays a central role in climate change. The isotope composition of water vapor, i.e. the ratio of light and heavy ...

Airborne campaign preparing to probe pollution-climate link

(Phys.org) —The floor of a NASA hangar and an adjacent laboratory in Southern California's high desert have been in constant motion this month as scientists prepare their instruments for installation on two of the agency's ...

Smoke from Canada Observed in Europe

This summer, Canada is experiencing unusually extensive wildfires. This week alone, 341 new forest fires have consumed a total area of 616,000 hectares. The smoke clouds produced by the fires in Canada have now reached Europe. ...

Airlines help researchers understand global climate change

Commercial aircraft are now being used to collect data which helps scientists to measure greenhouse gases, aerosols and cloud particles. This allows the collection of observational data on a scale and in numbers impossible ...

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