Earth system

From the Cover: Tipping Elements in Earth Systems Special Feature: Tipping elements in the Earth System [Introductory_Perspective]

Proceedings of the National Academy (Free subscription) | 7 hours ago

Tipping Elements in Earth Systems Special Feature: Dust as a tipping element: The Bodele Depression, Chad [Environmental_Sciences-PS]

Proceedings of the National Academy (Free subscription) | 7 hours ago

Dust plays a vital role in climate and biophysical feedbacks in the Earth system. One source of dust, the Bodélé...

Tipping Elements in Earth Systems Special Feature: On the stability of the Atlantic meridional overturning circulation [Environmental_Sciences-PS]

Proceedings of the National Academy (Free subscription) | 7 hours ago

One of the most important large-scale ocean current systems for Earth's climate is the Atlantic meridional overturning circulation (AMOC). Here...

Tipping Elements in Earth Systems Special Feature: Sensitivities of marine carbon fluxes to ocean change [Perspective]

Proceedings of the National Academy (Free subscription) | 7 hours ago

Throughout Earth's history, the oceans have played a dominant role in the climate system through the storage and transport of...

Tipping Elements in Earth Systems Special Feature: The future of ice sheets and sea ice: Between reversible retreat and unstoppable loss [Environmental_Sciences-PS]

Proceedings of the National Academy (Free subscription) | 7 hours ago

We discuss the existence of cryospheric "tipping points" in the Earth's climate system. Such critical thresholds have been suggested to...

Tipping Elements in Earth Systems Special Feature: Basic mechanism for abrupt monsoon transitions [Research_Articles]

Proceedings of the National Academy (Free subscription) | 7 hours ago

Monsoon systems influence the livelihood of hundreds of millions of people. During the Holocene and last glacial period, rainfall in...

Tipping Elements in Earth Systems Special Feature: El Nino/Southern Oscillation response to global warming [Sustainability_Science-PS]

Proceedings of the National Academy (Free subscription) | 7 hours ago

The El Niño/Southern Oscillation (ENSO) phenomenon, originating in the Tropical Pacific, is the strongest natural interannual climate signal and has...

Tipping Elements in Earth Systems Special Feature: Ocean methane hydrates as a slow tipping point in the global carbon cycle [Geophysics]

Proceedings of the National Academy (Free subscription) | 7 hours ago

We present a model of the global methane inventory as hydrate and bubbles below the sea floor. The model predicts...

Tipping Elements in Earth Systems Special Feature: Exploring the likelihood and mechanism of a climate-change-induced dieback of the Amazon rainforest [Sustainability_Science-BS]

Proceedings of the National Academy (Free subscription) | 7 hours ago

We examine the evidence for the possibility that 21st-century climate change may cause a large-scale "dieback" or degradation of Amazonian...

What happens when the sun starts up again?

A Man With A Ph.D. (Free subscription) | 9 hours ago

Courtesy of SOHO/MDI consortium. SOHO is a project of international cooperation between ESA and NASA. 2000-2009 will be warmest decade on record: [Via CEJournal] The National Climatic Data Center is reporting today that the Earth system is ignoring Climategate and all those claims that we’re in the midst of dramatic global cooling. According to the NCDC, when 2009 [...]

The Science is Settled

Roger Pielke Jr.'s Blog (Free subscription) | 16 hours ago

This post makes the case for why the science is settled on climate change. Of course, interpreting this statement, which once had its own Wikipedia page , depends entirely upon what one means by "the science." Here I am going to define "the science" as that science of the global earth system which is necessary to open up the possibility that decision makers may wish...

Environmental Modification Techniques(ENMOD) And Climate ChangeThe Manipulation...

Britannia Radio (Free subscription) | 12/06/2009

Environmental Modification Techniques(ENMOD) And Climate ChangeThe Manipulation Of Climate For Military UseBy Michel ChossudovskyGlobalResearch.ca12-6-9 "Environmental warfare is defined as the intentional modification or manipulation of the natural ecology, such as climate and weather, earth systems such as the ionosphere, magnetosphere, tectonic plate system, and/or...

Climate researcher defends actions, claims ’smear’

American Conservative Daily (Free subscription) | 12/05/2009

... what scientists are saying," said Michael Mann, director of Pennsylvania State University's Earth Systems Science Center, in a teleconference Friday with reporters. Mr. Mann's research has been ... Email </a

CLIMATEGATE UPDATE: Phil Jones accused of making error of judgment by colleague. One of the scie…

Instapundit.com (Free subscription) | 12/04/2009

CLIMATEGATE UPDATE: Phil Jones accused of making error of judgment by colleague. One of the scientists to whom the emails were addressed, Professor Michael Mann, the Director of the Earth System Science Center at Pennsylvania State University has moved to distance himself from some of the comments in the emails that suggest scientists did not [...]

Capt. Queeg on the stand

Heliogenic Climate Change (Free subscription) | 12/04/2009

... have not contributed to an honest scientific discourse," said Michael Mann , director of the Earth System Science Center at Penn State. Mann is one of the scientists whose e-mails were hacked; Penn State is investigating the issue. He said the e-mails were "stolen and misrepresented." ... "Those advocating inaction don't have the science on their side," Mann...