January 18 – Children Of The Sun

Today’s factismal: If you were born after 1977, you’ve never known a year that was cooler than average.

The climate numbers for 2016 are in and they are about what everyone expected; for the third year in a row, a new global temperature record was set. That makes 2016 the 40th year in a row that was warmer than average. Put another way, if you were born after 1977, the world has always been abnormally hot. Now part of those high temperatures in 2016 came from a lingering El Niño in the Pacific ocean, but El Niño comes and goes; it doesn’t last 40 years. And part of the high temperatures in 2016 came from a drop in volcanic activity which tends to lower temperature – but there have been some large eruptions in the past four decades. So why does the temperature keep going up?

The average global temperature has risen quite a bit in the past 136 years (Data courtesy NDC)

The average global temperature has risen quite a bit in the past 136 years; the blue line is the 20th century average global temperature
(Data courtesy NDC)

So why are we getting warmer? It is no secret; as a matter of fact, this very thing was predicted back in 1896 based on a discovery made in 1859. It is the CO2 that we are adding to the atmosphere. CO2 happens to block some of the “heat radiation” given off by the Earth. This is reabsorbed by the atmosphere, raising its temperature slightly. (Think of it as being like the interest given to you by a bank. You give them a dollar and every year they give you four cents more as interest. Over time, that interest builds up and so does your bank account.) Of course, lots of other factors come into play when you are talking about a planet , so the temperature change isn’t instantaneous and it has some wiggles in it. But overall, the pattern is clear: increasing CO2 increases temperature and changes climate.

The change from the 20th century average temperature. Blues are colder than average; oranges and reads are warmer than average. (Image courtesy NOAA)

The change from the 20th century average temperature. Blues are colder than average; oranges and reads are warmer than average.
(Image courtesy NOAA)

As a citizen scientist, there are two sets of things you can do. The first is to reduce the amount of energy you use; a nice benefit of this is that you also save money. For example, making sure that your tires are properly inflated will save you the equivalent of $0.10 per gallon and save the US the equivalent of 1.2 billion gallons of oil. Adding a layer of insulation to your water heater (like that blanket on your bed) will save you about $30 per year and save the US another 500 million gallons of oil. There are plenty of other way you can save money while saving the planet. But if you still want to do more, why not help record the changes that global warming is bringing to your neighborhood? Join iSeeChange and help them monitor how temperatures, weather, and other things are changing. To learn more, head to:
http://thealmanac.org/getinvolved.php

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