A Fine Line: The Delicate Balance of Atmospheric Greenhouse Gas
We have a tendency to think of methane and greenhouse gases
as inherently bad, but this is not exactly the case. After all, without any greenhouse gas in our atmosphere
we’d still be in an ice age, so what exactly is all the hype about? Well, it’s true that greenhouse gas in our
atmosphere is what makes life on earth possible, but too much of it on the other hand and the land masses will flood.
This is why we need to be extremely careful about what we put into our
atmosphere.
First of
all, where did all this gas come from? Well, ever since the industrial
revolution humans have been pouring methane into the atmosphere and increasing
the ratio exponentially. All of this gas comes primarily from ruminant
livestock, rice cultivation, landfills, and fossil fuel extraction. Check out
this graph below which illustrates the sharp increase of methane in the
atmosphere around the early 1900s.
So what are
normal amounts of atmospheric methane? According to the chart above, we should
be shooting for about 630 parts per billion, about 1/3 of the current levels!
To
make matters worse, the growing population coupled with the demand for these
polluting commodities has exacerbated the issue. Here is a graph of the world
population with an alarmingly similar exponential curve.
Thankfully,
the news is not all doom and gloom. According to this chart compiled by Google
using data from the World Bank, the rate of population expansion has been
declining since the 1960s.
If you are
not feeling the excitement yet, you should be! The World Bank also estimates
that by the year 2015, the population growth rate will be down to below 0.5%. What
this means is that our requirement for these resources (beef, natural gas,
etc.) will be in less demand. Couple this with an intentional cultural shift to
eat less beef, use less fossil fuel, and send less waste to landfills, we may
very well be able to put a cap on this global methane concern.
There is however one critical component to stabilizing and
eventually decreasing the greenhouse gas content in our atmosphere, and that is
you. It will take effort on the part of every individual to decrease our meat
consumption (in particular ruminant animals), be ever mindful of waste
production, and take heed in the sources of our energy. With just a bit of
conscious effort, we can preserve the atmosphere for future generations to
enjoy as we have. To learn more about what you can do, visit methaneeducation.weebly.com. Also be sure to check out the other posts on this blog for more specific solution ideas. For an in depth analysis of the meat consumption situation and methane pollution, I recommend the documentary Cowspiracy: The Sustainability Secret.
Learn more at http://methaneeducation.weebly.com
For additional great methane related information
check out this site: http://www.eoearth.org/view/article/153147/.
The World Bank offers in depth studies and learning tools for those ready to take the next step: http://www.worldbank.org.
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