Weigh in on environmental issues on Oct 4, in Toronto Canada. If you are a citizen of the US or Canada you are invited to participate. Go to IJC.ORG to find out more. So your part to protect the Great Lakes.
Despite the acknowledgment of the importance of wetlands to nature, the USA loses 60,000 acres of wetlands a year. Read on for more specifics on the state of wetlands today in the USA.
“Since April, over 3000 Native American people have been camping in Cannon Ball, North Dakota. They are trying to stop the construction of the Dakota Access Pipeline, which would run underneath the Missouri river near the Cheyenne river reservation.”
Video by Anna Bressanin
Saltinity important to ocean processes:
“These processes are important drivers of ocean currents all over the world. The salty water created by sea ice formation is denser than fresh water, so it has a tendency to sink to the bottom of the ocean. In doing so, it helps push the water below it forward along the sea floor, creating a current that runs north toward the equator. As the water warms up, it rises to the surface and eventually runs back toward the poles. This process helps carry heat and nutrients around the world.”
“Blue is water’s signature colour. When light shines on a body of water all the wavelengths of light in the light spectrum are absorbed with the exception of the blues, indigos, and violets. Sometimes green light doesn’t get absorbed either. These unabsorbed colours are what we see. Clouds, sunshine, and shadows do beautiful things to the colour of water, making it appear in different shades of blues, purples, blacks, greys, and greens.”