Navigation Links
Decline in uptake of carbon emissions confirmed

A decline in the proportion of carbon dioxide (CO2) emissions absorbed by land and oceans is speeding up the growth of atmospheric CO2, according to a paper published today in the US Journal: Proceedings of the National Academy of Science.

Lead author and Executive Director of the Global Carbon Project, CSIROs Dr Pep Canadell, says the acceleration is due to three factors: global economic growth; the worlds economy becoming more carbon intense (that is, since 2000 more carbon is being emitted to produce each dollar of global wealth); and a deterioration in the land and oceans ability to absorb carbon from the atmosphere at the required rate.

What we are seeing is a decrease in the planets ability to absorb carbon emissions due to human activity, Dr Canadell says.

Fifty years ago, for every tonne of CO2 emitted, 600kg were removed by land and ocean sinks. However, in 2006, only 550kg were removed per tonne and that amount is falling.

Dr Canadell says the results have major implications for the current and future growth of atmospheric CO2.

The majority of current emission scenarios for modelling climate through the 21st century assume sustained decreases in the carbon intensity of the global economy, which have not occurred since 2000, he says.

CSIROs Dr Mike Raupach, a co-chair of the Global Carbon Project, says The carbon cycle is generating stronger-than-expected and sooner-than-expected climate forcing that is, mechanisms that force the climate to change. In turn, climate change itself is feeding back to affect the carbon cycle, decreasing land and ocean sinks."

Most of the co-authors of the study including Dr Canadell and Dr Raupach are members of the UN Intergovernmental Panel on Climate Change which was awarded the Nobel Peace Prize for 2007 earlier this month.

Dr Raupach says the research shows that the Earth is losing its restorative capacity to absorb CO2 emissions following massive increases in emissions over the past half century. The longer we delay reducing emissions, the more restorative capacity will be lost, Dr Raupach says.


Contact: Dr. Mike Raupach
CSIRO Australia

Related biology news :

1. US life expectancy about to decline, researchers say
2. Alzheimers cognitive decline slowed
3. Horseshoe crab decline threatens shorebird species
4. Contaminants linked to sturgeon decline in Columbia river
5. HIV decline in Zimbabwe linked to behavioural change
6. Alaska seal pup diet may hold key to decline of population
7. Acid rain causing decline in sugar maples, say researchers
8. Alarming decline in Nepals rhinos and tigers in former Maoist stronghold
9. Steep oxygen decline halted first land colonization by Earths sea creatures
10. Climate change creates dramatic decline in red-winged black bird population
11. Individual differences in a clock gene predict decline of performance during sleep deprivation
Post Your Comments:
(Date:11/12/2015)... 11, 2015   Growing need for low-cost, ... has been paving the way for use of ... discrete analytes in clinical, agricultural, environmental, food and ... used in medical applications, however, their adoption is ... to continuous emphasis on improving product quality and ...
(Date:11/10/2015)... , Nov. 10, 2015 ... behavioral biometrics that helps to identify and verify ... Signature is considered as the secure and accurate ... identification of a particular individual because each individual,s ... accurate results especially when dynamic signature of an ...
(Date:11/4/2015)... , November 4, 2015 ... market report published by Transparency Market Research "Home Security Solutions ... and Forecast 2015 - 2022", the global home security solutions ... bn by 2022. The market is estimated to expand ... from 2015 to 2022. Rising security needs among customers ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... ... November 24, 2015 , ... The United States Golf Association (USGA) today ... Green Section Award. Presented annually since 1961, the USGA Green Section Award recognizes an ... turfgrass. , Clarke, of Iselin, N.J., is an extension specialist of turfgrass ...
(Date:11/24/2015)... ... 2015 , ... International Society for Pharmaceutical Engineering (ISPE) closed ... events for pharmaceutical manufacturing: 2015 Annual Meeting. The conference took place in Philadelphia, ... number of attendees in more than a decade. , “The 2015 Annual ...
(Date:11/24/2015)... ... ... The Academy of Model Aeronautics (AMA), led by its Executive Council, has officially ... to represent the First–Person View (FPV) racing community. , FPV racing has exploded in ... racing and several new model aviation pilots have joined the community because of their ...
(Date:11/24/2015)... FRANCISCO , Nov. 24, 2015  Twist ... announced that Emily Leproust, Ph.D., Twist Bioscience chief ... Jaffray Healthcare Conference on December 1, 2015 at ... Hotel in New York City. --> ... . Twist Bioscience is on Twitter. ...
Breaking Biology Technology: