Article: Patent No. 07601189 Issued on Oct. 13, Assigned to Oy Hydrocell Ltd. for Filtration method and a filter device for removing impurities from the air of a limited space and an apparatus for removing carbon dioxide from the air of an air-raid shelter

Article: Carbon Dioxide Promises Green Alternative for ...
AScribe Science News Service;  March 10, 2006 ;     700+ words ... ... tiny quantities of carbon dioxide that would be released from air conditioners would ... who is developing carbon dioxide-based air conditioning systems ... regarding the use of carbon dioxide in portable air conditioners for the ...

Article: The leaf annals: fossil foliage puts scientists on the scent of ...
Science News;  August 28, 1993 ;     700+ words ... ... pouring billions of tons of carbon dioxide into the air each year. As a greenhouse ... means of gauging how much carbon dioxide the air held long ago. Though ... Trees and shrubs grown in air with extra carbon dioxide develop fewer stomata ...

Article: Europe likely to lead with new air conditioning.(using ...
Automotive News;  March 11, 2002 ;     700+ words ... ... commercialization of carbon dioxide-based air conditioning systems ... also will supply an air conditioning system using carbon dioxide for the Toyota FCHV ... in conventional air conditioning systems. Because carbon dioxide must be pressurized ...

Article: Canada : Boosting carbon dioxide capture from the ...
TendersInfo;  May 13, 2009 ;     700+ words ... ... scrubbing systems to capture carbon dioxide from air. The technique appears ... transport, so capturing carbon dioxide directly from the air could be crucial. Scientists ... have known how to remove carbon dioxide from the air using alkaline solutions ...

Article: Fish, plant life can show whether lake takes or makes ...
The Milwaukee Journal Sentinel;  July 14, 1997 ;     621 words ... ... or pulls it from the air. Normally, lakes give off carbon dioxide, says Stephen Carpenter ... But, by measuring carbon dioxide levels in the air and water, and simultaneously ... lacking big fish, pulled carbon dioxide from the air, the researchers found ...

Article: Carbon dioxide air conditioning could become ...
Tire Business;  January 19, 2004 ;     700+ words ... ... and expansion of carbon dioxide in a closed system can chill hot air. When a heat pump ... window fogging. A carbon dioxide air conditioning system ... investigation include air, propane and a ... primary suppliers of carbon dioxide systems include ...

Article: Illinois air quality gains // Carbon dioxide ...
Chicago Sun-Times;  November 21, 1988 ;     700+ words ... ... that, we bring down the amount of carbon dioxide we're producing, then we're ... glad to have it." Enforcement of air-quality standards under the U ... based fuels, which emit less carbon dioxide, help explain the improvement in ...