News tagged with ocean science

Wind shifts may stir CO2 from Antarctic depths

Natural releases of carbon dioxide from the Southern Ocean due to shifting wind patterns could have amplified global warming at the end of the last ice age--and could be repeated as manmade warming proceeds, ...

Space & Earth / Earth Sciences

created Mar 12, 2009 | popularity 4.2 / 5 (70) | comments 6

Researchers find future temperatures could exceed livable limits

Reasonable worst-case scenarios for global warming could lead to deadly temperatures for humans in coming centuries, according to research findings from Purdue University and the University of New South Wales, ...

Space & Earth / Earth Sciences

created May 04, 2010 | popularity 3.5 / 5 (55) | comments 69 | with audio podcast

Present ocean acidification rates are unprecedented: research

The world's oceans may be turning acidic faster today from human carbon emissions than they did during four major extinctions in the last 300 million years, when natural pulses of carbon sent global temperatures ...

Space & Earth / Environment

created Mar 01, 2012 | popularity 4.3 / 5 (25) | comments 43 | with audio podcast

Scientists discover surprise in Earth's upper atmosphere

(PhysOrg.com) -- UCLA atmospheric scientists have discovered a previously unknown basic mode of energy transfer from the solar wind to the Earth's magnetosphere. The research, federally funded by the National ...

Space & Earth / Earth Sciences

created Sep 10, 2009 | popularity 4.6 / 5 (23) | comments 5

Scientist suggests life began in freshwater pond, not the ocean

(PhysOrg.com) -- For most everyone alive today, it's almost a fundamental fact. Life began in the ocean and evolved into all of the different organisms that exist today. The idea that this could be wrong causes ...

Space & Earth / Earth Sciences

created Feb 14, 2012 | popularity 4.5 / 5 (22) | comments 41 | with audio podcast report

What caused a giant arrow-shaped cloud on Saturn's moon Titan?

(PhysOrg.com) -- Why does Titan, Saturn's largest moon, have what looks like an enormous white arrow about the size of Texas on its surface?

Space & Earth / Space Exploration

created Aug 16, 2011 | popularity 4.5 / 5 (20) | comments 36 | with audio podcast

Global warming pause linked to sulfur in China

Scientists have come up with a possible explanation for why the rise in Earth's temperature paused for a bit during the 2000s, one of the hottest decades on record.

Space & Earth / Earth Sciences

created Jul 04, 2011 | popularity 4.1 / 5 (20) | comments 40

Atmospheric warming altering ocean salinity

The warming climate is altering the saltiness of the world's oceans, and the computer models scientists have been using to measure the effects are underestimating changes to the global water cycle, a group ...

Space & Earth / Earth Sciences

created Apr 27, 2012 | popularity 3.8 / 5 (21) | comments 67 | with audio podcast

Antarctic sea temperatures cooled in Holocene but now rising: study

(PhysOrg.com) -- A new study of an ocean sediment core taken from deep water off the coast of the western Antarctic Peninsula is beginning to fill in some of the gaps in our knowledge of climate variability ...

Space & Earth / Earth Sciences

created Feb 10, 2011 | popularity 4.2 / 5 (18) | comments 20 | with audio podcast report

Dust plays larger than expected role in determining Atlantic temperature

(PhysOrg.com) -- The recent warming trend in the Atlantic Ocean is largely due to reductions in airborne dust and volcanic emissions during the past 30 years, according to a new study.

Space & Earth / Earth Sciences

created Mar 26, 2009 | popularity 4.4 / 5 (17) | comments 13

Ancient catastrophic drought leads to question: How severe can climate change become?

How severe can climate change become in a warming world? Worse than anything we've seen in written history, according to results of a study appearing this week in the journal Science.

Space & Earth / Earth Sciences

created Feb 24, 2011 | popularity 3.8 / 5 (19) | comments 24 | with audio podcast

Geoscientists Drill Deepest Hole in Ocean Crust in Scientific Ocean Drilling History

(PhysOrg.com) -- For eight weeks beginning in November 2009, off the coast of New Zealand, an international team of 34 scientists and 92 support staff and crew on board the scientific drilling vessel JOIDES ...

Space & Earth / Earth Sciences

created Jan 25, 2010 | popularity 4.3 / 5 (16) | comments 11 | with audio podcast

New type of El Nino could mean more hurricanes make landfall

El Niño years typically result in fewer hurricanes forming in the Atlantic Ocean. But a new study suggests that the form of El Niño may be changing potentially causing not only a greater number of hurricanes ...

Space & Earth / Earth Sciences

created Jul 02, 2009 | popularity 3.3 / 5 (20) | comments 12

Ancient Hawaiian glaciers reveal clues to global climate impacts

Boulders deposited by an ancient glacier that once covered the summit of Mauna Kea on the island of Hawaii have provided more evidence of the extraordinary power and reach of global change, particularly the ...

Space & Earth / Earth Sciences

created Aug 05, 2010 | popularity 4.4 / 5 (14) | comments 3 | with audio podcast

Ocean's carbon dioxide uptake reduced by climate change

(PhysOrg.com) -- How deep is the ocean's capacity to buffer against climate change? As one of the planet's largest single carbon absorbers, the ocean takes up roughly one-third of all human carbon emissions, ...

Space & Earth / Earth Sciences

created Jul 10, 2011 | popularity 4.9 / 5 (12) | comments 15 | with audio podcast