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Latest Tipping point Stories

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2010-12-16 06:25:00

According to a new study released Wednesday, there is no "tipping point" beyond which climate change will eventually push the Arctic icecap into a total melt off. Over the past 30 years the polar icecap has shrunk between 15 and 20 percent causing much concern that with current trends -- with regional temperatures increasing two to three times the global average -- it could disappear entirely during the summer months by the end of this century. One factor in this calculation is a so-called...

2010-12-07 12:14:00

SAN FRANCISCO, Dec. 7, 2010 /PRNewswire/ -- Tipping Point Community, the Bay Area's leading poverty-fighting organization, honored grantees Fresh Lifelines for Youth, New Door Ventures and Shelter Network at its Fourth Annual Awards Breakfast this morning. The event was held at the Julia Morgan Ballroom in San Francisco. Presenters at the breakfast included Tipping Point Board Chairman Alec Perkins, Tipping Point Board Members Jed York and Phaedra Ellis-Lamkins, and Leadership Council...

2010-11-29 16:26:48

The rate of global warming could lead to a rapid release of carbon from peatlands that would further accelerate global warming. Two recent studies published by the Mathematics Research Institute at the University of Exeter highlight the risk that this 'compost bomb' instability could pose, and calculate the conditions under which it could occur. The same Exeter team is now exploring a possible link between the theories described in the studies and last summer's devastating peatland fires in...

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2010-11-13 06:50:00

Historical ecology of the Andes indicates desert-like setting on the horizon Catastrophic drought is on the near-term horizon for the capital city of Bolivia, according to new research into the historical ecology of the Andes. If temperatures rise more than 1.5 to 2 degrees Celsius (3 to 5 degrees Fahrenheit) above those of modern times, parts of Peru and Bolivia will become a desert-like setting. The change would be disastrous for the water supply and agricultural capacity of the two million...

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2010-10-21 08:35:00

Researchers measure survival, reproduction of thousands of arctic and alpine plants over six years As Earth's climate warms, species are expected to shift their geographical ranges away from the equator or to higher elevations. While scientists have documented such shifts for many plants and animals, the ranges of others seem stable. When species respond in different ways to the same amount of warming, it becomes more difficult for ecologists to predict future biological effects of climate...

2010-09-10 11:49:14

What if there were a way to predict when a species was about to become extinct"”in time to do something about it? Findings from a study by John M. Drake, associate professor in the University of Georgia Odum School of Ecology, and Blaine D. Griffen, assistant professor at the University of South Carolina, may eventually lead to such an outcome"”and that is only the start. Their study also has implications for understanding drastic, even catastrophic, changes in many other kinds of...

2010-06-18 14:38:44

The first comprehensive synthesis on the effects of climate change on the world's oceans has found they are now changing at a rate not seen for several million years. In an article published today in Science magazine, scientists reveal the growing atmospheric concentrations of man-made greenhouse gases are driving irreversible and dramatic changes to the way the ocean functions, with potentially dire impacts for hundreds of millions of people across the planet. The findings of the report,...

2010-05-10 11:00:00

SAN FRANCISCO, May 10 /PRNewswire/ -- Tipping Point Community, the Bay Area's leading poverty-fighting organization, today announced that its annual benefit held on the evening of May 6 raised $6 million, and 100 percent of the money will go to organizations that provide vital services to local individuals and families in need, as Tipping Point's board underwrites all of the event's costs. With healthcare making headlines in 2010, Tipping Point Community's benefit focused its major...

2010-03-24 13:52:08

Climate change is just one of the problems With climate change at the front and center of today's political debates, the other indicators of the Earth's environmental health are not always top of mind in the public conscience. Featured as part of the cover story of Scientific American magazine's April issue, which hits newsstands on Wednesday, March 24, U of M professor Jon Foley makes the case for why we need to pay more attention to all environmental processes that contribute to the Earth's...

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2010-02-10 13:11:42

A new University of California, Davis, study by a top ecological forecaster says it is harder than experts thought to predict when sudden shifts in Earth's natural systems will occur -- a worrisome finding for scientists trying to identify the tipping points that could push climate change into an irreparable global disaster. "Many scientists are looking for the warning signs that herald sudden changes in natural systems, in hopes of forestalling those changes, or improving our preparations...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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