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Tropic of Cancer

The Tropic of Cancer, or Northern tropic is one of the five major circles of latitude that mark maps of the Earth.

Note: The above text is excerpted from the Wikipedia article "Tropic of Cancer", which has been released under the GNU Free Documentation License.

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Worm Named After a Comedian Impacting Spiny Lobster Reproduction and Could Threaten a Lucrative Fishery

June 28, 2023 — A species of nemertean worm discovered by a marine biologist five years ago affects the reproductive performance of Caribbean spiny lobsters, a critical species in the Caribbean Sea and the Gulf of ...

'Lost' Coral Species Resurrected

May 5, 2022 — With about one-third of the world's corals currently under threat of extinction due to climate change, researchers have made the encouraging discovery of a 'lost' species of coral that ...

The Jet Stream That Brought in Storm Eunice Is Moving Northwards

Feb. 22, 2022 — The Northern Hemisphere Jet Stream, which this week brought storms Dudley, Eunice and Franklin to the UK has been getting faster and moving northwards over the past ...

Ancient Marine Reptile Fossil, Publish Ground-Breaking Evolutionary Insight

June 26, 2023 — Researchers who have unlocked new evolutionary information following the discovery of a 94-million-year-old mosasaur in the gray shale badlands of the National Park Service Glen Canyon National ...

Twelfth Century Literature and Space-Age Data Help Map 3,000 Years of Auroras

Oct. 14, 2021 — Researchers have published maps indicating how the auroral zone has moved over the last three ...

Global Natural History Initiative Builds Groundbreaking Database to Address 21st Century Challenges

Mar. 23, 2023 — A group of natural history museums has mapped the total collections from 73 of the world's largest natural history museums in 28 countries. This is the first step of an ambitious effort to ...

Scientists Shine New Light on Role of Earth's Orbit in the Fate of Ancient Ice Sheets

May 26, 2022 — Scientists have finally put to bed a long-standing question over the role of Earth's orbit in driving global ice age ...

Secrets of Namibia's Fairy Circles Demystified: Plants Self-Organize

Oct. 20, 2022 — Scientists have puzzled over the origin of Namibia's fairy circles for nearly half a century. It boiled down to two main theories: either termites were responsible, or plants were somehow ...

Origin of Fairy Circles: Euphorbia Hypothesis Disproved

June 9, 2021 — The fairy circles of the Namib are one of nature's greatest mysteries. Millions of these circular barren patches extend over vast areas along the margins of the desert in Namibia. An early ...

Thawing Permafrost Releases Greenhouse Gas from Depth

Aug. 2, 2021 — Geologists compared the spatial and temporal distribution of methane concentrations in the air of northern Siberia with geological maps. The result: the methane concentrations in the air after last ...

Earth & Climate News

December 7, 2023

'Shocking' Discovery: Electricity from Electric Eels May Transfer Genetic Material to Nearby Animals

Dec. 5, 2023 — Researchers have discovered that electric eels can alter the genes of tiny fish larvae with their electric shock. Their findings help to better understand electroporation, a method by which genes can ...

Geoscientists Map Changes in Atmospheric CO2 Over Past 66 Million Years

Dec. 7, 2023 — An international consortium of geoscientists has reconstructed atmosphereric levels of CO2 going back 66 million years using proxies in the geoloogical record. Today's concenteration, 420 parts per million, is higher than it's ever been in 14 ...

More Than a Meteorite: New Clues About the Demise of Dinosaurs

Dec. 4, 2023 — What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately set the stage for the dinosaur extinction, challenging the ...

'Cooling Glass' Blasts Building Heat Into Space

Nov. 13, 2023 — Researchers aiming to combat rising global temperatures have developed a new 'cooling glass' that can turn down the heat indoors without electricity by drawing on the cold depths of space. The new technology, a microporous glass coating, can lower ...

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Sister Climate Cities, Utility Data Predict Future Water, Electricity Demands

Dec. 7, 2023 — Modern-day Ciudad Mante, Mexico, could help Tampa, Florida, plan for shifting water and electricity demands due to climate change, according to an ...

Jays Jump in While Crows Hold out for the Treat

Dec. 6, 2023 — New research has found that two similar species of birds behave very differently around their favorite food when they have company. Biologists compared the behavior of two species of corvids, ...

The Ocean May Be Storing More Carbon Than Estimated in Earlier Studies

Dec. 6, 2023 — The ocean's capacity to store atmospheric carbon dioxide is some 20% greater than the estimates contained in the latest IPCC report. Scientists looked at the role played by plankton in the natural ...

'Friendly' Hyenas Are More Likely to Form Mobs

Dec. 5, 2023 — Research reveals strong social relationships make hyenas more likely to team up against lions, even when there's no obvious ...

Molecular Fossils Shed Light on Ancient Life

Dec. 7, 2023 — Paleontologists are getting a glimpse at life over a billion years in the past based on chemical traces in ancient rocks and the genetics of living animals. New research combines geology and ...

Wasps That Recognize Faces Cooperate More, May Be Smarter

Dec. 7, 2023 — A new study of paper wasps suggests social interactions may make animals smarter. The research offers behavioral evidence of an evolutionary link between the ability to recognize individuals and ...

Artificial Light Is Luring Birds to Cities and Sometimes to Their Deaths

Dec. 4, 2023 — Scientists used weather radar data to map bird stopover density in the United States and found that artificial light is a top indicator of where birds will land. City lights lure birds into what can ...

Researchers Develop Grassroots Framework for Managing Environmental Commons

Dec. 6, 2023 — A team of sustainability scientists recently announced that they have developed a community-based framework, founded on extensive local and traditional knowledge, to help assess and respond to the ...

Feathered Friends Can Become Unlikely Helpers for Tropical Coral Reefs Facing Climate Change Threat

Dec. 6, 2023 — Tropical coral reefs are among our most spectacular ecosystems, yet a rapidly warming planet threatens the future survival of many reefs. However, ...

Climate Change Shown to Cause Methane to Be Released from the Deep Ocean

Dec. 6, 2023 — New research has shown that fire-ice -- frozen methane which is trapped as a solid under our oceans -- is vulnerable to melting due to climate change and could be released into the ...