Daily Archives: April 24, 2013

U.S. to Clean Up Agent Orange in Vietnam


AssociatedPres

Published on Apr 24, 2013

Fifty years after U.S. warplanes first sprayed a chemical weapon, known as Agent Orange, on Vietnam’s jungles to destroy enemy cover, America is helping clean up one of the most contaminated sites – Danang airport. (April 24)

Environmental Justice http://courses.dce.harvard.edu/~envre145
Environment Ethics http://courses.dce.harvard.edu/~envre120
Food-Matters http://Food-Matters.TV

World Bank President: Climate Change Is Urgent ‘Today’ Problem | PBS NewsHour

http://www.pbs.org/newshour/rundown/2013/04/world-bank-president-climate-change-is-urgent-today-problem.html

COPING WITH CLIMATE CHANGE

World-Bank-pres

The Basics of EndNote Basic


EndNoteTraining

Published on Apr 24, 2013

Captions: None

An introduction to using the free version of EndNote Basic, with a short section at the end on extra features available in EndNote Basic when used with EndNote.

BBC News – Earliest satellite maps of Antarctic and Arctic sea-ice

http://www.bbc.co.uk/news/science-environment-22271972
24 April 2013 Last updated at 10:30 ET

By Jonathan Amos Science correspondent, BBC News

The NSIDC project examined almost 40,000 images from the Nimbus-1 archive to produce the September 1964 maps of Arctic (L) and Antarctic (R) sea-ice extent
Continue reading the main story

Related Stories

The earliest satellite maps of Arctic and Antarctic sea-ice have been assembled by scientists.

They were made using data from Nasa’s Nimbus-1 spacecraft, which was launched in 1964 to test new technologies for imaging weather systems from orbit.

The satellite’s old pictures have now been re-analysed to determine the extent of the marine ice at the poles in the September of that year.

Regular mapping from space did not begin until 1978.

One key finding is that marine floes around the White Continent in the 1960s were probably just as extensive as they are today.

The new snapshot, published in The Cryosphere journal, therefore helps put current ice conditions into a longer-term context, say researchers at the US National Snow and Ice Data Centre (NSIDC).

It is also just a fascinating story of how old scientific data can be given a new lease of life. ….(read more).

Global Climate Change http://courses.dce.harvard.edu/~envre130
Environment Ethics http://courses.dce.harvard.edu/~envre120

Dung beetles and their effects on soil | ManagingWholes.com

http://www.managingwholes.com/dung-beetles.htm

Submitted by Peter Donovan on Thu, 07/08/2010 – 20:16

Patricia & Dick Richardson

Summary: Favored by managed grazing, dung beetles in Oklahoma buried about 1 ton of wet manure per acre per day (2 metric tons/ha). This increased water infiltration an average of 129% on studied plots. Each extra inch (25 mm) of water absorbed adds 27,225 gallons/acre (254,530 l/ha) of water to the soil, reducing both flooding and drought.

Healthy soil is an extremely complex civilization of living organisms. We humans often ignore using soil organisms as a tool, because they are so small, so easily out of sight and out of mind. Yet, healthy soil is the corner stone of diversity and health for both plants and animals.

On pasture and rangeland grazed by livestock, the dung beetle is a soil organism that is visible to humans, beneficial to soil health and easily monitored. They are valuable as a soil restoration tool to increase organic matter, aerate, remove non-point source pollution, increase water infiltration, and help control pest insects. They work for free and love their work. The only consideration needed is to not use insecticides/parasiticides that poison them.

Pat Richardson

Fresh cow pad.

Pat Richardson

13 hours later, after being worked by O. gazella dung beetles.

Earthworms first appeared where dung beetles were most active. Today harvester ants build their mounds with earthworm castings.

Global Climate Change http://courses.dce.harvard.edu/~envre130
Environment Ethics http://courses.dce.harvard.edu/~envre120
Food-Matters http://Food-Matters.TV

Al Gore: New thinking on the climate crisis


TEDtalksDirector

Uploaded on Apr 8, 2008

http://www.ted.com – In Al Gore’s brand-new slideshow (premiering exclusively on TED.com), he presents evidence that the pace of climate change may be even worse than scientists were recently predicting, and challenges us to act with a sense of “generational mission” — the kind of feeling that brought forth the civil rights movement — to set it right. Gore’s stirring presentation is followed by a brief Q&A in which he is asked for his verdict on the current political candidates’ climate policies and on what role he himself might play in future.

Global Climate Change http://courses.dce.harvard.edu/~envre130
Environment Ethics http://courses.dce.harvard.edu/~envre120

Antarctica’s Feeling the Heat. Are We?

bigthink

Published on Apr 23, 2012

The CO2 levels Peter Ward measured on a recent trip to Antarctica left him with a bleak view of the future of the planet.

Global Climate Change http://courses.dce.harvard.edu/~envre130
Environment Ethics http://courses.dce.harvard.edu/~envre120