Climate Effects on Human Evolution

This article explores the hypothesis that key human adaptations evolved in response to environmental instability.  This idea was developed during research conducted by the Smithsonian’s Human Origins Program. Natural selection was not always a matter of ‘survival of the fittest’ but also survival of those most adaptable to changing surroundings. By the Smithonian  Background Paleoanthropologists – scientists who…

The melting of permafrost

Updated: Discovery of Positive Methane Feedback from Permafrost Thaw

Update: As pointed out by one of the authors, Rhiannon Mondav, the microbe is not considered an entire new discovery. (See comment below). Phys.org explains: Scientists from The University of Queensland have discovered a microbe that is set to play a significant role in future global warming. UQ’s Australian Centre for Ecogenomics researcher Ben Woodcroft said…

Flooded Soil Science

Repost from 2012:  Kate Scow – Professor of Soil Science and Microbial Ecology, UC Davis setup an excellent wiki entry about flooding on soils. Flooded soils occur with complete water saturation of soil pores, and generally result in anoxic conditions of the soil environment. Flooded soil environments may include such ecosystem as: rice paddies; wetlands (swamps,…

Climate Change in the Ocean – the big picture? Ove Hoegh Guldberg (21mins Lecture)

Oct 15, 2013 by ARC Centre of Excellence for Coral Reef Studies http://www.youtube.com/user/CoralCoE/videos Presentation given at the Australian Research Council Centre of Excellence for Coral Reef Studies 2013 Symposium: Coral Reefs in the 21st Century ~ James Cook University, in Townsville Australia by Professor Ove Hoegh Guldberg (21mins Lecture) Global Change Institute University of Queensland,…

Climate change is messing with coral skeletons – Aurelie Moya (7mins lecture)

Oct 15, 2013 by The ARC Centre of Excellence for Coral Reef Studies undertakes world-best integrated research for sustainable use and management of coral reefs. http://www.youtube.com/user/CoralCoE/videos & http://www.coralcoe.org.au/ Presentation given at the ARC Centre of Excellence for Coral Reef Studies 2013 evening Forum: Coral Reefs in the 21st Century Research Fellow at James Cook University…

Reef decalcification under business-as-usual CO2 emission scenarios – Sophie Dove (24mins lecture)

Oct 14, 2013 by ARC Centre of Excellence for Coral Reef Studies – The ARC Centre of Excellence cements Australia’s leading contribution to coral reef sciences, and fosters stronger collaborative links between the major partners and 24 other leading institutions in nine countries. http://www.youtube.com/user/CoralCoE/videos & v Presentation given at the ARC Centre of Excellence for…

Thawing Permafrost Could Release Vast Carbon Deposits, Diseases

by Science World Report | January 8, 2014 | Release URL Dr Guido Grosse has been studying the Arctic for fourteen years to find out how the frozen ground, known as the permafrost, is reacting to an environment that is getting hotter all the time. The samples he has drilled out – in regions so…

Ocean Acidification Summary for Policymakers 2013

Published by IGBP November 14, 2013 This summary for policymakers reports on the state of scientific knowledge on ocean acidification, based on the latest research presented at The Third Symposium on the Ocean in a High-CO2 World, held in Monterey, California, in September 2012. Experts present the projected changes from ocean acidification for ecosystems and the people who rely on…

Abrupt Climate Change In The Arctic (And Beyond) An Update

AGU Fall Meeting 2013: Our understanding of future Arctic change is informed by the history of past changes, which often have been both large and abrupt. The well-known ice-age events such as the Younger Dryas show how sea-ice changes can amplify forcing to produce very large responses, with wintertime sea ice especially important. These changes…

Amazon River Basin Tipping Point

Published on YouTube Dec 13, 2013: The Amazon River Basin holds 20% of the world ‘s freshwater and produces 20% of the world’s oxygen. And plays a major role in stabilizing the earth’s ecosystem. But the balance is shifting. Production and profit for a fast-growing economy jeopardizes the preservation of Amazonia. As Brazilians-and the world-watch…

Plant Productivity Reduction with Climate Change

NASA: Drought Drives Decade-Long Decline in Plant Growth published 08.19.10 by Kathryn Hansen | Source Earth has done an ecological about-face: Global plant productivity that once flourished under warming temperatures and a lengthened growing season is now on the decline, struck by the stress of drought. NASA-funded researchers Maosheng Zhao and Steven Running, of the…

Life found in the sediments of an Antarctic subglacial lake for the first time

Video: What Lies Beneath: NASA Antarctic Sub Goes Subglacial NASA / JPL February 28, 2013: When researcher Alberto Behar from NASA’s Jet Propulsion Laboratory in Pasadena, Calif., joined an international Antarctic expedition last month on a trek to investigate a subglacial lake, he brought with him a unique instrument designed and funded by NASA to help…

The Ocean Is Going To Start Confusing Fish And Dissolving Seashells

Climate Progress August 27, 2013: Ocean acidification driven by increasing atmospheric carbon levels is a substantial threat to marine life, a new study has confirmed. The study, published in the journal Nature Climate Change, analyzed 167 studies on the effects of ocean acidification on corals, crustaceans, mollusks, fishes and echinoderms, a group which includes starfish…

Climate Extremes and the Carbon Cycle

A new study (doi:10.1038/nature12350) published in nature, explores the impacts of extreme weather events on the carbon cycle. By Bobby Magill / Wunderground, published: August 15, 2013: Devastating drought in the Southwest, unprecedented wildfire activity, scorching heat waves and other extreme weather are often cited as signs of a changing climate. But what if those extreme…