hydrosphere

Changes in Greenland landscape affect carbon balance sheet

Warming is altering Greenland's tundra, affecting carbon dynamics

From the National Science Foundation - Warming temperatures in the Arctic are changing the tundra from a landscape dominated by grasses to one increasingly dominated by woody shrubs. In addition to affecting the habitat of local wildlife such as caribou and musk oxen, these changes are also altering the carbon exchange between the plants and the atmosphere.

EARTH Magazine: How Sandy Changed Storm Warnings

From our friends at the American Geosciences Institute - Superstorm Sandy slammed against the U.S. Eastern Seaboard in October 2012, inundating iconic communities. Those communities have been rebuilding since then and things are almost back to normal for most. But something else has had to be rebuilt as well: the structured procedures for issuing warnings. The goal is to help communities better comprehend what natural disasters will bring their doorsteps.

The IPCC climate change report - in 90 seconds

From BBC News - Scientists and politicians are gathering in Stockholm this week to await the latest report from the IPCC, the UN's Intergovernmental Panel on Climate Change.  The last report from the panel - which came out in 2007 - was considered so important that it led to the IPCC being awarded the Nobel Peace Prize, jointly with Al Gore.  The BBC's Victoria Gill explains why this report really matters - in just 90 seconds.  Click here to access the video.

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Explore ‘Big Ideas’ in Videos, Classroom Activities

From our friends at the American Geosciences Institute - AGI now offers award-winning videos and related classroom activities to help students, educators, and others explore the “big ideas” of Earth science during Earth Science Week 2013 (October 13-19) and all year long. New this year are 35 additional activities selected specifically to help educators teach about the core concepts of Earth science.

Measurements of Antarctic Ice-Shelf Melt and Models of Global Climate Change

Aerial view of a field camp on Pine Island Glacier Ice Shelf.

Ability of ice shelves to regulate movement of Antarctic glaciers directly affects potential sea-level rise.

In a finding that is expected to vastly improve models of the global effects of climate change on sea-level rise, a National Science Foundation- (NSF) funded research team, working in one of Antarctica's most challenging environments, has produced the first direct measurements of how relatively warm sea water undercuts a floating ice shelf that normally retards the movement of glaciers from the Antarctic continent to the sea.

Historical Tsunami on the Delaware River?

Imagine the Delaware River abruptly rising toward Philadelphia in a tsunami-like wave of water. Scientists now propose that this might not be a hypothetical scenario. A newly published paper concludes that a modest (one-foot) tsunami-like event on the East Coast was generated in the past by a large offshore earthquake. This result may have potential ramifications for emergency management professionals, government officials, businesses and the general public.

Chesapeake Bay Professional Development Opportunity

The PA Alliance for Geographic Education announces Year 2 of the Chesapeake Champions professional development program for teachers in the Chesapeake Bay region of Pennsylvania.  The PD is provided free to teachers by National Geographic Society, the PA Alliance for Geographic Education, the Renfrew Institute for Cultural and Environmental Studies, and the Alliance for Aquatic Resource Monitoring.  The program is generously supported by a grant from NOAA. 

'Twinning' Opportunity Available for Grades 4–6

WWMC partner RiverXchange is seeking fourth- to sixth-grade classrooms (approximate ages 9 to 11) anywhere in the world willing to become high-tech pen pals with classrooms in New Mexico, USA. Students will engage with one another and learn about their local rivers by following a curriculum that integrates science, social studies, and math. See below for more information.

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