Cow + Grass = House
Cows plus grass equals dung; 7-9 million tonnes of it each year in the USA alone! What if cows plus grass made flooring?, or shelving? or a table? Michigan State University researchers, working with the US Department of Agriculture, reckon that the "digester solids" leftovers from anaerobic digestion of cattle manure can be processed into…
Fancy a bottle of Swedish white?
At the moment, the idea of wines from Scandinavia, or other northern climes, may seem fanciful. But by the end of this century, climatologists suggest that Sweden could be producing Riesling or Chianti, Germany will be better known for luscious red wines than the current whites, and California’s famous Napa Valley could be as hot…
“Sustainable Aquaculture” – challenges for a growing industry
On 27 February at Aquaculture 2007, the Trienniel Meeting of the World Aquaculture Society, National Shellfisheris Society and American Fisheries Society – Fish Culture Section, the Plenary Lecture was given by Dr Jason Clay of the World Wildlife Fund. The theme was how the WWF is acting to promote sustainable food production, focusing on aquaculture.…
Drink coffee, feed the world?
As I sat bleary-eyed in the staff restaurant at CABI drinking a morning cup of coffee today, was I simply having a shot of caffeine to keep me going after an early start. Or, as it was Fairtrade coffee I was drinking, was I making a real contribution to improved livelihoods of small farmers in…
Conservation agriculture: the zero way
Brazilian farmers are at the forefront in the application of Zero Tillage, a cropping method that is greener, boosts productivity, and helps the climate. “Called direct drilling, no-tillage or zero tillage (ZT), the technique is in part praised for fixing carbon in the soil, thereby reducing the amount of carbon dioxide — a greenhouse gas…
Water or biofuels? You choose.
A recent editorial written by Fred Pearce in Sugaronline.com points out the alarming possible repercussions of growing biofuels for the world’s water supply. As the policy makers seriously consider this option as an apparently climate change-friendly method of fueling the world, we have to consider what affect this might have on other, already stretched, natural…
Tortilla crisis: how green fuel may be harming Mexico’s poor
In the face of global warming which is now acknowledged by almost all to be at least partly man-made, and of high oil prices and worries about dependence on imports from politically unstable regions, the idea of renewable energy from plants seems a very attractive one. Biofuels aren’t at risk from political upheaval or terrorism,…
Successful seed storage
For all you keen gardeners looking for novel ways to preserve your seed harvest this year, there’s no need to worry about not having special cryopreservation equipment or a ready supply of liquid nitrogen. You can draw on the wisdom of indigenous cultures for some methods to extend storage life. Take a look at the…
Bunny Rabbits
Fluffy and cute they may be, but rabbits cause around £115m worth of damage to UK crops annually. New research suggests that a quick and cheap method for repelling the fuzzy little menaces is to dust a wheat crop with slag – a readily available and cheap-as-chips byproduct of blast furnaces. The scientists at Central…
Climate Change Catastrophy for Californian Crops?
Researchers at Lawrence Livermore National Laboratory say that increasing temperatures in California will damage yields of almonds, walnuts, oranges, avacados and table grapes. These crops are long-lived and are only planted once every 25-40 years. This could expose them to a projected temperature change of two to four degrees celsius over the next 45 years.…