USDA launches effort to upgrade climate data tracking

The Agriculture Department will use $300 million to improve its measurement, verification and tracking of carbon sequestration and greenhouse gas emissions as it moves ahead with climate-smart agriculture and forestry efforts, ...

Numerous blue supergiants observed in detail

Stars are the basic elements of construction of galaxies, and therefore of the observable universe. Among the different types of stars there are some whose mass is more than eight times the mass of the sun; these are termed ...

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