reimagining relationships
Home   Store   Free GIS   Education   Free Shapefiles   Census   Weather   Energy   Climate Change   News   Maps   TOPO   Aerial   GPS   Learn GIS

DOWNLOAD SHAPEFILES: Canada FSA Postal - Zip Code - U.S. Waterbodies & Wetlands - Geographic Names - School Districts - Indian Federal Lands
Zip Code/Demographics - Climate Change - U.S. Streams, Rivers & Waterways - Tornadoes - Nuclear Facilities - Dams & Risk - 2013 Toxic Release Inventory TRI

ANWR Arctic National Wildlife Refuge; What is at stake; removed USFWS website; photos, maps, descriptions

tools for survival plans Maps Food Water Health Gardening Energy Housing Security Communications Livelihood

Money Making Tips Work from Home Make Money Used Lumber & Building Materal Beginner's Guide Buy/Sell Gold Electronics & Computer

GIS Shapefile Store - for Beginners & Experienced GIS Users Alike. Geographic Names Information System, Nuclear Facilities, Zip Code Boundaries, School Districts, Indian & Federal Lands, Climate Change, Tornadoes, Dams - Create digital GIS maps in minutes.

Toxic Release Inventory TRI Shapefiles

Canada FSA Postal Code Shapefile

GNIS Shapefiles 2,000,000+ Points

Nuclear Energy Facilities in the U.S.

Download Zip Code with Demographics Shapefiles

Download U.S. Streams & Rivers Shapefiles

Download Water Body & Wetland Shapefiles

Download Zip Code Boundary Shapefiles

Download School District Shapefiles

Download Indian & Federal Land Shapefiles

Download Climate Change Shapefiles

Download Tornado Shapefiles

Download Dams & Risks Shapefiles

Follow on Twitter Follow on Twitter

Didn't find what you are looking for? Email me and I'll find it for you.

Progressive Links

Federation of American Scientists

Physicians for Social Responsibility

Public Employees for Environmental Responsibility

Union of Concerned Scientists


Reader Supported News

Common Dreams


Huffington Post

Media Matters

Think Progress

Grist Environmental News

Climate Shift Blog

MapCruzin Consulting
Data Research and GIS Specialists.

GIS Tutorials

GIS Basics

GIS Terminology

Of Interest

Arctic National Wildlife Refuge Maps

Climate Shift - The effects of climate shift on the future of planet earth and its inhabitants.

Right to Know or Left to Wonder?

Hazardscapes - Toxic and Nuclear Risks in your backyard.

War & Environment

Worst Case Scenarios: Terrorism & industrial chemicals.

Carbon sunk -- Only solution is to cut CO2 emissions


Fair Use Statement

<-- Return To Climate Change

Source: New Scientist

See Also:
Carbon sinks won't solve global warming.
Planting Northern Forests Would Increase Global Warming.
A Modest Proposal to Stop Global Warming By Ross Gelbspan.

Carbon sunk

19:00 23 July 01
Fred Pearce

Forests are not about to save the planet from greenhouse effect by soaking up carbon dioxide.

Under experimental conditions, extra doses of carbon dioxide encourage trees to grow faster. This has led to the idea that, as atmospheric levels of the gas rise due to industrial pollution, fast-growing forests could absorb some of the gas and slow down global warming.

Researchers have dubbed this the "CO2 fertilisation effect", and the forests "carbon sinks". But new research published this week by two teams of researchers suggests there is a big difference between what happens in greenhouse experiments and the real world.

The first team bathed trees in extra CO2 on research plots at Duke University in Durham, North Carolina. The trees grew faster for three years, but then reverted to their former growth rates. They only resumed faster growth when they were dosed with nitrogen fertiliser.


Supply and demand

In the real world, Ram Oren and colleagues conclude, "forest growth is limited by nutrient supply, in particular nitrogen", as much as CO2. Most forests are unlikely to be able to turn the extra CO2 in the air into plant growth.

And even where trees do grow faster and take up more CO2, most of it returns to the air again before long, warns William Schlesinger, also of Duke University.

In the second study, Schlesinger found that almost half of the CO2 absorbed by trees goes to form foliage rather than wood. Once the leaves fall to the ground, most of their carbon decays and returns to the air within three years - very little is taken up in soils.

"Carbon going into the soil has a rapid turnover time, so it seems we should not expect carbon in the soil to increase significantly," said Eric Davidson of the Woods Hole Research Center in Massachusetts, who reviewed the new studies for Nature.

Abandoned land

Climate analysts have estimated that around a fifth of industrial emissions of CO2 are reabsorbed by vegetation on land. The question is: where and how?

Davidson says the studies suggest that CO2-fertilisation cannot be responsible. It is also unlikely that acid rain is supplying extra nitrogen to allow trees to grow taller, he says. "Soils immobilise most of the nitrogen inputs".

More likely, he concludes, the CO2 is being absorbed by "the regrowth of forests on abandoned farm land and forest land harvested a few decades ago" in Europe and North America.

See Also:
Carbon sinks won't solve global warming.
Planting Northern Forests Would Increase Global Warming.
A Modest Proposal to Stop Global Warming By Ross Gelbspan.

<-- Return To Climate Shift

Didn't find what you are looking for? We've been online since 1996 and have created 1000's of pages. Search below and you may find just what you are looking for.

Michael R. Meuser
Data Research & GIS Specialist is an independent firm specializing in GIS project development and data research. We created the first U.S. based interactive toxic chemical facility maps on the internet in 1996 and we have been online ever since. Learn more about us and our services.

Have a project in mind? If you have data, GIS project or custom shapefile needs contact Mike.

Contact Us

Report Broken Links

Subscribe for Updates

Advertise on MapCruzin

Follow on Facebook
News & Updates

Find: Maps, Shapefiles, GIS Software & More

MapCruzin Blog for updates, questions and answers
Blog Updates

More Blog Updates


Google Earth Toxic Release Inventory (TRI) Maps
Lester Brown's Plan B 3.0
State GIS Shapefiles, Maps & Resources
GIS Shapefiles & Maps
GIS Programs, Tools & Resources
Free World Country & Regional Maps
GIS / GPS Careers and Job Positions
Disease Outbreak Maps
Extreme Weather & Disaster Maps
Free World Maps from the CIA Factbook
Arctic National Wildlife Refuge ANWR Maps
Oil and Gas Maps
Africanized Honey Bees
Renewable Energy Potential Maps of the United States
Terrorism Maps
War Maps
Google Maps
Weather Maps
GPS Resources
Historical Maps of the World
Google Earth
Library of Congress American Memory Map Downloads
Toxic Chemical Pollution Maps
Climate Change Maps
Toxic Release Inventory (TRI) Maps
Census Shapefiles
World Maps


Environmental Justice
Data Sources
Greenwash & JunkScience
Statistical Resources
Wireless Dangers
Surviving Climate Change
Global Right-To-Know
Creating Living Economies
Books of Note
Toxic Klamath River
Federal Lands Maps
TRI Analysis
TRI Webmaps
EnviroRisk Map Network
Community-Based Research
Right-To-Know or Left to Wonder?
Chemical Industry Archives
21st Century Warfare
National Parks and Public Lands
Trade Secrets/Toxic Deception
GIS Books
Our Projects
Other Projects
1999 Archive Environews
Environmental Books
Environmental Links
Redwood Coast Information
Recycle, Salvage, Reuse

Shapefile Store
Free GIS Software
Free Map Downloads
Free Shapefiles
Free Remote Sensing
Free Topo Maps
Free GIS Tutorial
Free GPS

About MapCruzin - Cookies, Privacy, Fair Use and Disclaimer - Advertise on

Copyright © 1996 - 2019 Michael Meuser, All Rights Reserved
MapCruzin is a Pop-Up Free Website -- Best Viewed With ANY Browser