soil erosion

Human security at risk as depletion of soil accelerates, scientists warn

Change is needed so that valuable, non-renewable fertilizers are recycled

Steadily and alarmingly, humans have been depleting Earth’s soil resources faster than the nutrients can be replenished. If this trajectory does not change, soil erosion, combined with the effects of climate change, will present a huge risk to global food security over the next century, warns a review paper authored by some of the top

biofuel facility

Editorial: Black swan?

Among the many topics in the science news releases last week was one from the University of East Anglia in the U.K. “A new study pinpoints five strains of yeast capable of turning agricultural byproducts, such as straw, sawdust and corncobs, into bioethanol — a well-known alcohol-based biofuel,” the release said. We’ve seen similar news


cattle in a pasture

Lowering greenhouse gas emissions from cattle

Economic incentives are needed to get producers on board, according to ruminant research scientist

There would be both winners and losers if the world followed Tim McAllister’s advice on how to lower greenhouse gas emissions from methane-belching bovines. “If we really wanted to reduce emissions we should be looking at identifying which areas in the world can produce ruminant products with the least amount of emissions and focusing production



Changing climate and oil markets good for Churchill

Churchill port sees new opportunities for shipping in a melting — and rapidly developing — Arctic

The thawing of the Arctic is a chilling environmental prospect, but Port of Churchill proponents say it heralds a new era for Canada’s long-neglected and underutilized northern deepwater port. Since the port was built 70 years ago, the focus has been on grain shipments, but it’s now shifting to supplying the fast-growing communities in Nunavut

Foreign demand for beef, soybeans adds pressure on Amazon forest

A study links consumers to environmental impact on Brazil, saying foreign demand 
accounts for 30 per cent of deforestation

Reuters / Rising foreign demand for beef and soybeans will tempt Brazil to clear more of the Amazon rainforest, in a reversal of recent success in slowing forest losses, a study said April 4. About 30 per cent of deforestation in Brazil in the decade to 2010 was due to farmers and ranchers seeking land


Black carbon a worse pollutant than feared

Reuters / Black carbon, the soot produced by burning fossil fuels and biomass, is a more potent atmospheric pollutant than previously thought, according to a new study. Emitted by diesel engines, brick kilns and wood-fired cookstoves, black carbon is second only to carbon dioxide as the most powerful climate pollutant, according to the study published

Expert says climate change will alter the Prairies

University of Winnipeg geography professor predicts Manitoba climate will be more like Nebraska’s 
within a few decades, including weeks of plus 30 C summer days

Hurricane Sandy and the devastating Midwest drought have convinced many Americans that climate change is real, and Prairie residents may soon have reason to feel likewise, says a University of Winnipeg geography professor. “We are in climate change central in this part of North America,” Danny Blair said in a recent presentation at Ag Days.


Discovery centre booth connects the field to our food

The featured booth at Manitoba Ag Days for 2013 is the Bruce D. Campbell Farm and Food Discovery Centre, which will be offering information and activities aimed at making connections between the farm and the food on your plate. The centre is located at the National Centre for Livestock and the Environment at the University

Agriculture causes much of global warming

Reuters / Food production accounts for up to 29 per cent of man-made greenhouse gases, twice previous UN estimates, according to a new study. The new study looked at emissions across the food system — including forest clearance, fertilizer production and transport — rather than just farming itself. But agriculture could profit by cutting its