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…

The melting of permafrost

Permafrost Methane Time Bomb

First published on YouTube Sep 9, 2012: Because of global warming, permafrost — the frozen ground that covers the top of the world — has been thawing rapidly over the last three decades. But there is cause for concern beyond the far north, because the carbon released from thawing permafrost could raise global temperatures even…

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…

Rebound an Earth Story

Glacial isostatic adjustment, why we have glacial and interglacial periods, how we can reconstruct climate history, and how the Earth is responding to the retreat of the continental glaciers. Video presentation by Meg Rosenburg (AGU Fall Meeting 2013) Post-glacial rebound

Scientists Measure Bubbling Sounds of Melting Glaciers

Glaciers Sizzle, Squirt Bubbles When Melting To Create Loudest Marine Environment; These Sounds Could Help To Measure Ice Melt By Sreeja VN: Sizzling underwater glacial ice, as it melts into warmer sea water, creates one of the loudest natural marine environments, and the air bubbles that pop during the process could help scientists measure the rate of…

Climate Change 2013 Working Group I: The Physical Science Basis

Published on YouTube Nov 21, 2013: The IPCC has produced a video on its Fifth Assessment Report (AR5). The first part on the Working Group I contribution to AR5 is now available. The other parts will be released with the successive approvals of the other two Working Group contributions and the Synthesis Report in the…

Singapore sized iceberg breaks off in Antarctica

Pine Island Glacier 2013, Nov. 10: This MODIS image taken by NASA’s Aqua satellite on Nov. 10, 2013, shows an iceberg that was part of the Pine Island Glacier and is now separating from the Antarctica continent. What appears to be a connection point on the top left portion of the iceberg is actually ice…

Global Warming Underestimated by Half

Uploaded on YouTube Aug 21, 2013: Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends. Cowtan & Way (2013) Stefan Rahmstorf at RealClimate: A new study by British and Canadian researchers shows that the global temperature rise of the past 15 years has been greatly underestimated. The reason is the data gaps in…

Climate change the state of the science (data visualization)

Published on YouTube Nov 19, 2013: Produced by the International Geosphere-Biosphere Programme and Globaia and funded by the UN Foundation. The data visualization summarises and visualizes several of the most significant statements in the Intergovernmental Panel on Climate Change’s (IPCC) recent Fifth Assessment Report, (Working Group I summary for policymakers, the Physical Science Basis). In…

Sea level rise: New iceberg theory points to areas at risk of rapid disintegration

Video published on YouTube Nov 21, 2012 | Article published on July 22, 2013 by Nicole Casal Moore / University of Michigan ANN ARBOR—In events that could exacerbate sea level rise over the coming decades, stretches of ice on the coasts of Antarctica and Greenland are at risk of rapidly cracking apart and falling into…

State of the Ocean: Ocean Acidification and Previous Marine Extinctions

The 2013 report on the State of the Ocean, by IPSO can be accessed here (PDF). From the report: Executive Summary • Climate change and the ocean – What does the future hold? The ocean isshielding us from the worst effects of accelerating climate change by absorbing excess CO2 and heat from the atmosphere. The twin effects…

IPCC: Climate Change Synthesis Report, Highlights

Published on YouTube Sep 30, 2013: For the 5th time in 23 years, the world’s leading climate scientists have released an update on the state of the climate. WeatherNation Chief Meteorologist reviews the highlights plus shares the panel’s predictions for the rest of the century. Here’s a link for more information: http://www.ipcc.ch/

NASA: Ocean Heat Content

Oceanic heat content (OHC) is the heat stored in the ocean. Oceanography and climatology are the science branches which study ocean heat content. The changes in the ocean heat play an important role in sea level rise, because of thermal expansion. It is with high confidence that Ocean warming accounts for 90% of the energy accumulation from global warming between 1971 and 2010.  …

Remote Antarctic Trek Reveals A Glacier Melting From Below

September 15, 2013 by Richard Harris from NPR – Scientists watching Antarctica’s Pine Island Glacier from space have noticed with some alarm that it has been surging toward the sea. If it were to melt entirely, global sea levels would rise by several feet. Source NPR (with transcript) Related New Antarctic ice core reveals secrets…

ESA Cryosat Animation of Arctic Sea Ice Thickness 2010-2013 with commentary

Via ESA, 11 September 2013: Offering new insights into our fragile polar regions, ESA’s CryoSat mission has provided three consecutive years of Arctic sea-ice thickness measurements, which show that the ice continues to thin. Although satellites have witnessed a downward trend in the extent of sea ice over the last two decades, it is essential to…