Search Results for Tag: greenhouse
Study says livestock emissions can be cut by 30 percent
We’ve all heard about how cows and other grass-eating cattle release methane, a powerful greenhouse gas (GHG), when they belch and fart. The United Nations has suggested in the past that the environmental impact of cattle might be even more damaging than the emissions of cars and trucks combined. Now, a new study by the Food and Health Organization (FAO) says that greenhouse gas emissions by the livestock sector could be cut by as much as 30 percent if farmers adopt better techniques within existing production systems.
Titled, Tackling climate change through livestock: A global assessment of emissions and mitigation opportunities, the new study says emissions linked to livestock supply chains add up to 7.1 gigatonnes of carbon dioxide equivalent (CO2-eq) per year – or 14.5 percent of all human-caused GHG releases.
That’s less than the 18 percent that was cited by the FAO in a widely-quoted study in 2006 (Livestock’s Long Shadow) on emissions linked to global meat production. The FAO says the new figure is based on a new revised modelling framework and updated data.
The latest report pinpoints the main sources of emissions at different stages of various livestock supply chains – food production and processing (45 percent of the total), outputs of greenhouse gases during digestion by cows (39 percent) and manure decomposition (10 percent).
So, how can livestock production – a wide-ranging, globe-spanning activity which varies greatly from country to country – lower its emissions? The FAO says it will require a mix of policies, incentives, and on-the-ground work.
The FAO study however says there is no need to shift from small-scale and backyard to industrial livestock farming. It says farmers need to more widely adopt best practices and technologies in feeding, health, husbandry and manure monitoring as well as make greater use of underused technologies such as biogas generators and energy saving devices.
“These efficiency gains can be achieved by improving practices, and don’t necessitate changing production systems,” Ren Wang, FAO assistant director general for agriculture and consumer protection, says. “But we need political will, better policies and most importantly, joint action.”
DateSeptember 27, 2013
Plastic bottles to greenhouses
A few days ago we received a very inspiring idea from Colombia. The e-mail came from the Centre for Science and Environmental Awareness and it helps to deal with growing mountains of empty plastic bottles.
We learned from the institute’s website that in Colombia an incredibly large amount of 15,000,000 plastic bottles is dumped every day. These bottles are not only thrown into trash bins, they are mainly just thrown away somewhere and this way become a very serious environmental problem.
The Centre for Science and Environmental Awareness tries to tackle the problem. As you can see in the picture, greenhouses are built to grow daily goods. The plastic-bottle-roofs have a size of about 3×3 meters. With only 4 hours work a week the roofs help to feed a family for a whole year, writes Carlos Alberto Yepes Vera, director of the center.
He also calls out to donate bottles or similar garbage to build more of these houses. The project’s goal, he says is also to build an awareness among the population to avoid the use of plastic bottles.
We are extremely grateful to hear from ideas like this one, so send us more of it!
DateAugust 23, 2013
Tagscarlos alberto yepes vera, Colombia, deutsche welle, dw, garbage, global ideas, greenhouse, plastic, recycling, reuse, upcycling
Kill a camel, cut pollution
Some Australians came up with a weird idea: Their country could award carbon credits for killing feral camels as a way to tackle climate change. Honestly! The suggestion is included in Canberra’s “Carbon Farming Initiative”, a consultation paper by the Department of Climate Change and Energy Efficiency.
Northwest Carbon, a commercial company, proposed culling some 1.2 million wild camels that live the Outback. The animals are considered a pest due to the damage they do to vegetation. Plus: One camel produces, on average, a methane equivalent to one tonne of carbon dioxide a year, that makes them (all together) one of Australia’s major emitters of greenhouse gases.
The idea is among some other that had been accepted for discussion by the government, which is seeking to “provide new economic opportunities for farmers, forest growers and landholders” if they come up with ways to cut emissions. Legislation for the “Carbon Farming Initiative” is set to go before parliament next week. What the …?!
DateJune 9, 2011
Jordan’s Green Machine
Jordan's government has approved a revolutionary new green project that could transform the country's desert into a green oasis and provide basic necessities like food and water to boot. An environmental technology group called the 'Sahara Forest Project' is creating a massive facility in the desert city of Aqba that promises to turn transform sun and seawater into food, energy and clean drinking water.
And to top it all off, the facility could combat climate change too by pulling in large amounts of carbon dioxide from the atmosphere. An MSN article on the project describes more of the details, including how the solar power plant and the greenhouse system will work.
The facility in Aqba will actually be a demo plant so developers can see how it works before creating more. And it could be up and running as early as 2012. Is this the way of the future for desert landscapes? Would this kind of project work in your country?
DateJanuary 23, 2011