emissions

How Western Droughts Increased Carbon Emissions

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An irrigation ditch carries water from the Colorado River to irrigate a farm growing leaf lettuce and broccoli near Yuma, Arizona.

In the early 20th century, as the United States developed the West, the federal government built hundreds of hydroelectric dams on major rivers in the region. These dams have destroyed riverine ecosystems and flooded indigenous land, but have also provided an affordable and abundant source of renewable energy for tens of millions of people. Hydroelectricity … Read more

LOFAR discovers the secret of Starlink: unwanted electromagnetic emissions from SpaceX satellites

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Large constellation of satellites in low Earth orbit above the Lofar telescope

Figure 1: Artist’s impression of a large constellation of satellites in low Earth orbit rotating above the LOFAR telescope. Credit: Danille Futselaar (artsource.nl) Scientists use the LOFAR telescope to observe low-frequency radio waves from satellites in large constellations for the first time. Scientists have used the Low Frequency Array (LOFAR) telescope to observe unwanted electromagnetic … Read more