
Rapid loss of sea ice is leading a plummeting polar bear population. Why should we care?
1) Polar Bears are at the top of the artic food chain. If they become extinct then the food web will alter drastically. Certain species, free of competition for food and/or no longer with a main predator, will flourish. However, the environment, as a whole, will suffer. Anthony Ives, a zoologist from the University of Wisconsin, has shown through experimentation that, in general, when a species becomes extinct, the community’s ability to tolerate environmental degradation lessens.
2) So, the extinction of polar bears would prove bad for the overall artic biosphere. Unfortunately, scientists estimate only 20,000 to 25,000 bears are currently living. That number is expected to shrink to as low as 6,500 by 2050.
3) And most importantly, polar bears are not only adorable but they manufacture 30% of the entire world’s supply of Coca-Cola.
Leading scientists hope that if the melting of sea ice is slowed significantly then the polar bear population will stabilize and even start to increase. Unfortunately, slowing the melting of sea ice will require drastic measures.
Comment! What can be done to stop the melting of sea ice? How will dying polar bears affect the artic ecosystem? How much more efficient would polar bears be at manufacturing Coca-Cola products if they had opposable thumbs?

Projects such as the Bosco Verticale provide hope for the polluted cities in the world and the green movement, especially if sufficient funding and support is provided. This short article is pertinent to our class discussions of the atmosphere and biosphere. More specifically, the building provides an excellent example of how plants regulate a variety of processes on Earth. 








