The Strange Reality of Climate Change

Joe Lizura's Blog on October 1, 2013.  I saw a story today, and you'll see the link to it below, and it struck me a little more than most climate change stories I run across on a weekly basis.  For those


Joe Lizura in San Diego

who may know, as an actual Meteorologist, I tend to look at global climate change with a little more of a scientific viewpoint and a little less of an emotional viewpoint.   So to that end, let me just say that global climate change is definitely going on -- but then again it always has been.  Take for example the very ground I walk on every day in San Diego it's covered with Rocks -- round smooth rocks and when you get into the inland valleys, those smooth round rocks (about the size of a softballs) grow larger and larger until they are the size of small bolders and then larger and larger until they are big bolders.  the odd part about the boulders and the rocks is that they are smooth, very much like the kind that you would find at the bottom of a river.  So the question begs: How did about a million round river rocks wind up in San Diego?  Is it from the ocean from way back when this part of the continent was under water?  Nope -- true, it's where the sand came from and the shells that you can dig up in the inland valleys, but that's not where the rocks and boulders came from.  So where then?  The answer is a little surprising, it's from the end of the last Ice Age as this very southwestern part of the land mass is the farthest extreme expansion of the ice.  The rocks and boulders left everywhere are actually rocks and boulders that the ice sheets pushed for a thousand miles, making them smoother and smoother as they slowly got pushed and tumbled and pushed again by the moving ice sheets, until nature smoothed them out like they were forever in a river (which I guess a river of ice would qualify). 

So what's the point?  Just that climate change is ALWAYS going on, and in the scheme of hundreds of millions of years, our mankind is just a blip of a factor in creating or perhaps enhancing a climate change that has most likely been going on for ten thousand years.

That's why you'll never hear me argue that there isn't global climate change, because there is - there always has been - places like the Sahara Desert were once lush landscapes of vegetation and life but are now endless miles of nearly lifeless sand - not because ancient man did anything, but because it was a much longer scale climate change that mankind just happens to have found itself in the middle of. 

That doesn't mean that we aren't making it worse, or making it happen faster, because we are, we definitely are exasperating the problem and rather than waiting ten thousand years to feel the effects, we are likely to feel the effects in 50 years - that's pretty amazing.  So is this story below about what is happening in Alaska - check this out.

ANCHORAGE, Alaska (AP) — An estimated 10,000 walrus unable to find sea ice over shallow Arctic Ocean water have come ashore on Alaska's northwest coast.
Scientists with the National Oceanic and Atmospheric Administration on Friday photographed walrus packed onto a beach on a barrier island near Point Lay, an Inupiat Eskimo village 300 miles southwest of Barrow and 700 miles northwest of Anchorage.

 

The walrus have been coming to shore since mid-September. The large herd was spotted during NOAA's annual arctic marine mammal aerial survey, an effort conducted with the Bureau of Ocean Energy Management, the agency that conducts offshore lease sales.

An estimated 2,000 to 4,000 walrus were photographed at the site Sept. 12. The U.S. Fish and Wildlife Service, the agency that manages walrus, immediately took steps to prevent a stampede among the animals packed shoulder to shoulder on the rocky coastline. The agency works with villages to keep people and airplanes a safe distance from herds.

Young animals are especially vulnerable to stampedes triggered by a polar bear, a human hunter or a low-flying airplane. The carcasses of more than 130 mostly young walruses were counted after a stampede in September 2009 at Alaska's Icy Cape.

The gathering of walrus on shore is a phenomenon that has accompanied the loss of summer sea ice as the climate has warmed.
Pacific walrus spend winters in the Bering Sea. Females give birth on sea ice and use ice as a diving platform to reach snails, clams and worms on the shallow continental shelf.

As temperatures warm in summer, the edge of the sea ice recedes north. Females and their young ride the edge of the sea ice into the Chukchi Sea. However, in recent years, sea ice has receded north beyond continental shelf waters and into Arctic Ocean water 10,000 feet deep or more where walrus cannot dive to the bottom.

Walrus in large numbers were first spotted on the U.S. side of the Chukchi Sea in 2007. They returned in 2009, and in 2011, scientists estimated 30,000 walruses along one kilometer of beach near Point Lay.

Remnant ice kept walrus offshore in 2008 and again last year.
The goal of the marine mammals survey is to record the abundance of bowhead, gray, minke, fin and beluga whales plus other marine mammals in areas of potential oil and natural gas development, said NOAA Fisheries marine mammal scientist Megan Ferguson in an announcement.

"In addition to photographing the walrus haulout area, NOAA scientists documented more bowhead whales, including calves and feeding adults in the Beaufort Sea this summer compared to 2012," said Ferguson. "We are also seeing more gray whale calves in the Chukchi Sea than we have in recent years."

Environmental groups say the loss of sea ice due to climate warming is harming marine mammals and oil and gas development would add to their stress.


Well, as I said, global climate change goes on, with or without us, but with us it is going on at a rate that is unprecedented.  There's no doubt that we are going to see the changes in our lifetime - we already are, but I just don't think that we are going to like what we see.

Thanks for reading my blog!  Joe Lizura
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