Monday, April 18, 2016

The World is in Dire Straits!

Reported in detail on the CBC  the Northern coast line of Canada is showing hard evidence of global warning.  The Tundra is warming up; thawing out and re-freezing again and again.

As it gets warmer the amount of Tundra will become larger.

Canada's Tundra stores more then half of the World's methane the singular worst of the global warning gasses.    Add to this the millions upon millions of tonnes of Carbon Dioxide that is frozen into that same Tundra.

If we do not arrest global warning it will be the end of civilization as we know it.  And, its not going to take centuries to accomplish this dubious end!   A few years should put us around the corner!

The significance of what is happening will effect the world at large and cannot be understated.

With more than 70 per cent of all Canadian coasts located in the North, this expansive area is one of the regions in need of close attention in light of climate change.

Coastline climate change map
There is a huge amount of carbon stored in permafrost. Right now, the Earth's atmosphere contains about 850 gigatons of carbon. (A gigaton is one billion tons—about the weight of one hundred thousand school buses). We estimate that there are about 1,400 gigatons of carbon frozen in permafrost. So the carbon frozen in permafrost is greater than the amount of carbon that is already in the atmosphere today. That doesn't mean that all of the carbon will decay and end up in the atmosphere. The trick is to find out how much of the frozen carbon is going to decay, how fast, and where.
How will additional methane from permafrost affect global warming?
There are several opposing processes at work, which make this a hard question to answer. Warmer temperatures mean that permafrost can thaw and release methane to the atmosphere. But warming also means that the growing seasons in Arctic latitudes will last longer. When the growing season is longer, plants have more time to suck up carbon from the atmosphere. Since carbon in the air is what plants use to grow, it can also act as a sort of fertilizer under certain conditions. Then plants to grow faster and take up even more carbon. Right now, the Arctic takes up more carbon than it releases. This means that plants take up carbon during the growing season, but do not release as much carbon through decay. So we say that the Arctic acts as a carbon sink.

But if the Earth continues to warm, and a lot of permafrost thaws out, the Arctic could become an overall source of carbon to the atmosphere, instead of a sink. This is what scientists refer to as a "tipping point." We say that something has reached a tipping point when it switches from a relatively stable state to an unstoppable cycle. In this case, the Arctic would change from a carbon sink to a carbon source. If the Arctic permafrost releases more carbon than it absorbs, it would start a cycle where the extra carbon in the atmosphere leads to increased warming. The increased warming means more permafrost thawing and methane release.
if governments around the world knew how much methane could be released from permafrost, it could help them decide what to do about it. For example, they would know how much we need to reduce fossil fuel emissions from human activities. They would also need to know how much carbon the Earth is emitting on its own.

In addition to this pressing evidence there is still more proof on the earth it's self!

Earth travels in an elliptical orbit.  Right now, we are moving away from the sun right on schedule but, instead of cooling down as we should be, we are warming up.  We either get a handle on this or totally loose our glaciers and associated potable water on the short term.
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