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EARTH473 articles archived since 1845

Old Trees Are Ecosystem Gold

David Lindenmayer of the Australian National University College of Science in Canberra says that older trees play outsize roles in maintaining landscapes and ecosystems.

February 12, 2018 — Mariette Dichristina and Steve Mirsky

Air Force Tracks Final Frontier

General Jay Raymond, Commander of Air Force Space Command, talks about keeping watch over space and cyber. 

January 3, 2018 — Lee Billings and Steve Mirsky

Grazing Cattle Trim the Menu for Birds

When cattle graze the desert's natural landscape, birds face changes in food availability—and some species are unable to adapt. Jason Goldman reports.

August 30, 2017 — Jason G. Goldman

Climate Change Might Shrink Fish

Warmer water boosts fishes' demand for oxygen—and their bodies may shrink in response. Christopher Intagliata reports.

August 29, 2017 — Christopher Intagliata

A Fruitful Experiment in Land Conservation

In 1998 an orange juice maker dumped 12,000 tons of orange peels on degraded pastureland in Costa Rica—transforming it into vine-rich jungle. Christopher Intagliata reports.

August 25, 2017 — Christopher Intagliata

Recycle Your Eclipse Glasses

Astronomers Without Borders wants to share your used eclipse glasses with kids in other parts of the world for the 2019 total solar eclipse.  

August 23, 2017 — Steve Mirsky
EARTH

Confronting Common Wisdom