Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Anti-Gas Grass May Help Tackle Global Warming

05.05.2008
Grass that may help tackle global warming by cutting the level of methane given off by cows is being developed by scientists reports the latest issue of the Society of Chemical Industry’s (SCI) magazine Chemistry & Industry.

Scientists at Gramina, a joint biotech venture by Australia’s Molecular Plant Breeding Cooperative Research Centre and New Zealand rural services group PGG Wrightson Genomics, are developing a grass that will not only cut the amount of methane cows burp up when chewing the cud but also grow in hotter climes.

This means that farmers should be able to maintain dairy herds’ productivity and profitability in the face of a changing climate, while cutting down their gaseous burps and reducing their contribution to global warming.

Combating greenhouse gas emissions produced by the agricultural industry is a priority. The UK’s DEFRA has just announced a roadmap aimed at helping the dairy industry reduce its potential impact on the environment in line with Britain’s target to cut its greenhouse emissions by 20% by 2010. By 2015 the roadmap plans to have 20-30% of milk producers trialling new technology to cut greenhouse gas emissions.

... more about:
»Increase »Methane »emissions »greenhouse

The Inter-governmental Panel on Climate Change (IPCC) calculates that methane makes up 14.3% of humanity’s contribution to global warming and data from the National Oceanographic and Atmospheric Administration (NOAA) in the US shows that atmospheric methane levels may be rising again after a 10 year period of stability. A single dairy cow can produce between 550-700L of methane a day and it has been estimated that methane from cattle in the UK could account for as much as 3% of the country’s total greenhouse gas emissions.

Cows’ production of methane is down to the microflora in their gut that helps them to digest their food. As these microbes break down the grass’ cellulose, methane is produced as a by-product, the majority of which is burped up.

David Beever, international nutrition director of Richard Keenan UK, said: ‘You don’t actually hear the cows burp, but they are permanently releasing methane.’

Gramina will use sense suppression technology to prevent the expression of the enzyme O-methyl transferase. Suppressing this enzyme leads to an increase in the digestibility of the grass without compromising its structural properties and therefore less burps and less methane.

Gramina has already tested this modification in temperate grasses in the lab and glasshouses and is now planning field trials.

However, some scientists suggest that a cow’s absolute methane emissions might go up.

Alistair Macrae, a lecturer in farm animal health and production at the University of Edinburgh, UK, says a diet too rich in highly digestible carbs can actually increase the amount of methane a cow belches out. This is because gut microflora convert more of these sugars into propionic acid, which creates a more acidic environment resulting in more methane.

Ian Givens, a professor of animal science, at the University of Reading, UK, says that more digestible forage could push up a cow’s absolute methane emissions but productivity gains would mean less methane per unit of milk.

Beever agrees and says, ‘It could increase methane emissions but it could also increase milk yields, effectively cutting the amount of methane produce per litre of milk.’

Meral Nugent | alfa
Further information:
http://www.soci.org

Further reports about: Increase Methane emissions greenhouse

More articles from Life Sciences:

nachricht New type of photosynthesis discovered
17.06.2018 | Imperial College London

nachricht New ID pictures of conducting polymers discover a surprise ABBA fan
17.06.2018 | University of Warwick

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

Im Focus: Photoexcited graphene puzzle solved

A boost for graphene-based light detectors

Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...

Im Focus: Water is not the same as water

Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications.

From a chemical perspective, water is a molecule in which a single oxygen atom is linked to two hydrogen atoms. It is less well known that water exists in two...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

A sprinkle of platinum nanoparticles onto graphene makes brain probes more sensitive

15.06.2018 | Materials Sciences

100 % Organic Farming in Bhutan – a Realistic Target?

15.06.2018 | Ecology, The Environment and Conservation

Perovskite-silicon solar cell research collaboration hits 25.2% efficiency

15.06.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>