Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
by Staff Writers
Linkoping, Sweden (SPX) Mar 25, 2014
Large amounts of carbon dioxide equivalents taken up by plants on land are returned to the atmosphere from aquatic environments. This according to a study carried out by two master's students at Linkoping University.
Emissions of carbon dioxide equivalents - such as methane and carbon dioxide - from lakes, ponds, rivers, open wells, reservoirs, springs, and canals correspond to on an average 42 % of the expected natural carbon sink in India.
These are the findings of the study by master's students Bala Panneer Selvam and Sivakiruthika Natchimuthu, students at the Science for Sustainable Development master's programme. They have done a thorough investigation of greenhouse gas emissions from many types of inland waters in India under supervision of Dr Lakshmanan Arunachalam, Tamil Nadu Agricultural University, India, and Dr David Bastviken, Linkoping University, Sweden.
"This carbon sink may therefore be smaller than expected, illustrating that we do not have full knowledge of the natural greenhouse gas balance," says Dr Bastviken. "Hence, it may be better to try to reduce fossil carbon emissions rather than hoping that natural environments have a large capacity to take up emitted carbon."
Methane accounted for 71% of the emitted aquatic CO2 equivalents and this opens up possibilities to reduce these emissions by reducing the water pollution in terms of nutrients and organic material.
"It is important to point out that these findings are not specific for India - all countries should consider aquatic emissions in their greenhouse gas balances."
The study also illustrates how student projects can contribute to science that attracts global interest. It was recently published in the scientific journal Global Change Biology, with the title Methane and carbon dioxide emissions from inland waters in India - Implications for large scale greenhouse gas balances.
Water News - Science, Technology and Politics
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.|