The colour of the skies, on the Prairies and elsewhere, tells the story of the paths sunlight takes as it enters Earth’s atmosphere, Daniel Bezte writes.
Tag Archives radiation
Why is the sky blue?
A look at some big recent weather stories and more weather basics
How Earth evens out the energy input
Weather is what happens when Earth balances its energy from the sun on a global scale
Earth has surpluses of radiation in its equatorial regions, and deficits toward its poles. Our weather is a matter of Earth trying to even out the imbalance, Daniel Bezte writes.
Prairie weather all starts with the sun
Weather takes energy, and the source of that is the star we all orbit around
The sun’s radiation comes to us in many forms, some of which are harmful to organic life while others are completely harmless or even essential, Daniel Bezte writes.
To till or not to till? For soybeans that’s the question
The Westman Agricultural Diversification Organization is testing out planting dates and pre-seed tillage systems in its latest round of soybean experiments
Conventional wisdom says to break out the harrow before planting soybeans, the better to expose black earth and warm the soil, but new research is putting that assumption to the test. Dr. Yvonne Lawley of the University of Manitoba is measuring the effect of seeding date and different tillage systems on soybeans through several regions
Population control — just let the males take over
Unlike sterilized males, GM versions are good performers but run out of females
Scientists at the University of East Anglia and Oxitec Ltd. in the U.K. say they have a new way to control a damaging crop pest — release males genetically engineered to father only male offspring. The scientists conducted greenhouse research with the Mediterranean fruit fly, which damages 300 types of cultivated and wild fruits, vegetables
CCA hopeful resubmitted irradiation petition will succeed
The debate over whether to permit irradiation of beef products begins again
The waiting has begun all over again for the Canadian Cattlemen’s Association (CCA) as it renews efforts to persuade Health Canada to approve irradiation for beef. The CCA submitted paperwork in early May asking the federal agency to restart the approval process for beef irradiation in Canada, repeating a similar request in a 1998 petition.
A new look at radiational cooling
If long-wave radiation can easily escape the area, we could see net cooling even if the sun is shining
I came across a weather article last week that was a purely academic discussion about radiational cooling. It was one of those articles that at first glance seemed to be purely a discussion for true weather geeks, meteorologists and university professors, with very little if anything to do with an everyday understanding of the weather,New models predict drastically greener Arctic in coming decades
New research predicts that rising temperatures will lead to a massive “greening,” or increase in plant cover, in the Arctic. In a paper published on March 31 in Nature Climate Change, scientists reveal new models projecting that wooded areas in the Arctic could increase by as much as 50 per cent over the next few
U.S. upholds ethanol mandate
Reuters – The United States upheld its program to turn a large share of the corn crop into ethanol for motor fuel Nov. 16, saying it did not cause undue economic harm despite steep competition for depleted U.S. grain supplies after the worst drought in 50 years. In August, as the drought seared the Midwest,
Beef industry still seeking approval to irradiate ground beef
Canadian cattle producers sought Health Canada approval to irradiate ground beef more than 10 years ago. They are still waiting.
The Canadian Cattlemen’s Association once thought it would be just a matter of time before Canadian food companies would get the green light to start irradiating ground beef. That was a decade ago, when the CCA submitted a petition to Health Canada seeking regulatory approval for use of irradiation as another tool to reduce pathogens