PLANET IN PERIL

The Canadian Centre for Policy Alternatives    by Darrin Qualman, Annette Aurélie Desmarais, André Magnan and Mengistu Wendimu A scene typical to the Canadian prairies - a big farm at harvest time. A public domain photo by cj berry. The ownership and control of Canada’s food-producing land is becoming more and more concentrated, with profound impacts for young farmers, food system security, climate change and democracy.  On the Canadian prairies, small and medium-sized family farms are often portrayed as the primary food production units. Yet, the reality of farming in Western Canada is quite different. In fact, a small and declining number of farms are operating the lion’s share of Prairie farmland and capturing the lion’s share of farm revenue and net income.  The authors analyse the extent of farmland concentration in Canada’s three Prairie provinces (Alberta, Saskatchewan, and Manitoba), where over 70 per cent of the country’s agricultural land is situated. They find that 38 per ce

by Larry Powell   The "Grey Nurse" or "Sand Tiger," shark (  Carcharias taurus ), a coastal species on the ICU's Red List as  critically endangered. A public domain photo by Richard Ling.  Here's how sharks are "finned." After hauling them aboard their vessels, the fishermen cut off their fins, then toss them back into the ocean. Still alive, they sink to the bottom where they're either eaten by other predators or die of suffocation.    About 100 million sharks are believed to be taken by fishers each year, most of them for their fins alone.  It's an industry estimated to be worth US$400 million a year.  The blue shark (Prionaceglauca). Photo by Mark Conlin/NMFS. If one were to believe official trade records over the past twenty years, most fins traded on world markets have come from more abundant "pelagic" species (ones which live in the open ocean) like the blue shark (above).  The leopard shark (Stegostoma fasciatum). An ADV

ScienceDaily A highway project in Alberta. A PinP photo. Are we setting ourselves up for the spread of a pandemic without even knowing it? Story here.

Nature (With minor editing by PinP) One of several steel power pylons toppled in an historic wind, snow and ice storm which swept through eastern Manitoba about a year ago. It left thousands without power in what was described as the worst power outage in the history of Manitoba Hydro. Damages are expected to exceed 100 million dollars. A Manitoba Hydro photo.  Even if human-induced greenhouse gas (GHG) emissions can be reduced to zero, global temperatures may continue to rise for centuries afterwards, according to a simulation of the global climate  published in Scientific Reports. Jorgen Randers and Ulrich Goluke modelled the effect of different greenhouse gas emission reductions on changes in the global climate from 1850 to 2500. They also created projections of global temperature and sea level rises. What do they show? Under conditions where manmade greenhouse gas emissions peak during the 2030s, then decline to zero by 2100, global temperatures will be 3°C warmer and sea levels 3

Nature A busy London pub. Photo by Steve Parker. Reopening places such as restaurants, fitness centres, cafes, and hotels carries the highest risk for transmitting SARS-CoV-2, according to a modelling study based on data from the United States published in Nature. Reducing occupancy in these venues may result in a large reduction in predicted infections, the model suggests. The study also highlights disparities in infection risk according to socioeconomic status. To assess how changes in movement might alter the spread of the  virus, Jure Leskovec and colleagues use phone data (collected this spring) to map the movements of millions of people from different local neighbourhoods. They combined these data with a model of transmission. This allowed them to identify potential high-risk venues and at-risk populations. The simulations from their model accurately predict confirmed daily case counts in ten of the largest metropolitan areas (such as Chicago, New York City and San Francisco). T

 SCIENCEDaily An Arctic river in Alaska. Photo by mypubliclands  A new study shows that increased heat from Arctic rivers is melting sea ice in the Arctic Ocean and warming the atmosphere. Details here.

OrganicBIZ An organic market garden in Manitoba. A PinP photo. Manitoba was the only Prairie province to see an increase in organic crop acres in 2019. Story here.

The Manitoba Wilderness Committee

                                                       Nature Communications A polar bear navigates a dwindling ice pack. Photo by Andreas Weith The melting of ice in polar and mountain regions around the world could lead to an additional 0.43 °C increase in global warming in the long term, according to a study published online in Nature Communications. The loss of ice cover is known to influence air temperatures, for example through albedo changes (the amount of sunlight reflected from the Earth’s surface). Although the mechanisms that are responsible for increased warming are well understood, it isn't clear how large the contributions of different ice sheets and feedback mechanisms to global temperature changes are. Nico Wunderling and colleagues use a simplified Earth system model in combination with different CO2 concentration levels to provide such an estimate. They find an additional median warming of 0.43°C in response to the loss of all ice sheets at CO2 concentrations sim

Environmental Research    

        by Larry Powell  The Premier of Manitoba, Brian Pallister. A Gov't. photo. The lengths to which the Pallister government is going to enable the unfettered exploitation of Manitoba's resources and massive expansion of its hog industry, should now be clear for all to see. For the past few years, it’s been rolling out, at significant taxpayer expense, the truly draconian measures it’s now taking, to make this happen.  While the writing has been on the wall, only now are the worst fears being realized. They expose this government’ naked contempt for the democratic rights of rural Manitobans who have the audacity to point out that these goals are misguided - that the emperor has no clothes. Late last year, the Municipality of Rosser, near Winnipeg, rejected a bid for a gravel mine (euphemistically called a limestone aggregate quarry). The politically well-connected owner of the construction company proposing the mine (who made a substantial contribution to the Conservative P