WeatherTec Services www.weathertec.mb.ca

Wednesday, April 30, 2008

Icebergs

Icebergs in the Antarctic area sometimes have stripes,�formed by�layers of snow�that react to different conditions.Blue stripes are often created when a crevice in the ice sheet�fills�up with meltwater�and freezes so quickly that no�bubbles form.When an iceberg falls into the sea, a layer of salty seawater�can�freeze�to the underside. If this is rich in algae,�it can form a green�stripe.Brown, black and yellow lines are caused by sediment,�picked up when�the ice sheet grinds downhill�towards the sea

Friday, April 18, 2008

Wind Power

Wind is air in motion. This invisible force can be powerful and destructive; but it can also be harnessed to generate clean electric power. Wind turbines with long propeller blades, erected in clusters, or wind farms, can be used to replace coal and oil fired plants that are belching pollution into the atmosphere. Farmers living near these turbines are voicing concerns about noise and hazards to birds and planes. In Manitoba the wind farms are being built one kilometer away from residences, so that noise and vision obstructions will be negligible.

Tuesday, April 1, 2008

Slowing the Warming


Warming of the atmosphere could be slowed down…but it would be expensive and it could have side affects.
The process would involve sending reflective material into the atmosphere, such as sulphur or aerosols that would send the sun’s radiation back into space.
This happened when Mount Pinatubo erupted in 1991. Millions of tons of sulphur dioxide were sent into the air.
Earth’s temperature dropped by 0.25 degrees Celsius.