Wednesday, March 17, 2010

Chart of the Day

I often remind enviro-fanatics that pollution has declined dramatically in America. The cultural impact of the movie Avatar makes the Environmental Protection Agency's air emissions update especially timely:


source: EPA

As can be seen, population, GDP and energy consumption all increased, yet emissions of the principal air pollutants dropped 54 percent (and air toxins by 35 percent in just 12 years).

See also Carpe Diem's nifty chart (though "Nitrous Dioxide" should be labeled "Nitrogen Oxides (NOx)").

3 comments:

OBloodyHell said...

> "Nitrogen Oxides (NOx)")

As long as we're being mildly pedantic, it should be a subscript x, since it's
NO   and NO    which we're talking about...
    ²            ³


8oD

.

suek said...

I remember Los Angeles in the early 1960s. _BELIEVE ME_!!! Air pollution _has_ been reduced! The air was honest to goodness brown...

I can even remember the weird feeling I'd get in my chest for about 3 days after returning from an area that relatively smog free.

Carl said...

Sue: Agreed.