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Making these compromises and accepting the cost of these offsets
may be no easy mater; at irst, for people in many professions, tak-
ing these actions might pose a tough challenge. But it's prety clear that
our current crisis requires us to change our whole way of life. In these
specific ways, it may push us well beyond the comfort zone, demanding
what we do not really want to give. Yet we simply must make changes
of this kind if we want to tackle the challenges that face us. If we do not,
we are no different from those who proclaim against all the evidence that
there is no problem at all—or are even worse, since we become far more
inconsistent and hypocritical than they. We have no choice but to do all
that we can.
Notes
126. MacK ay, Sustainable Energy , 35.
127. George Monbiot, Heat , 173. For the Special Report from the Royal
Commission on Environmental Pollution, see The Environmental Effects of
Civil Aircraft in Flight , 2002, especially paragraph 3.22, available as a pdf
document online. For the IPCC estimate, which is drawn from research
into the greenhouse gas impact of air travel in 1992, see the Special Report,
Aviation and the Global Atmosphere , 1999, section 6.6.5, htp://www.ipcc.ch/
ipccreports/sres/aviation/index.php?idp=86.
128. I calculated these numbers on the Carbon Footprint Calculator at
terrapass.com, which, as its name suggests, provides estimates only for
the carbon emissions for a given plane flight—not for its overall effect
on the environment. In this regard it is typical of most carbon footprint
websites. Responsible users of these sites would be well advised to multiply
the estimate of footprint for air travel by 2.7. See htp://terrapass.com/
carbon-footprint-calculator-2/.
129. Monbiot, 180.
130. Monbiot, 180-82; see also MacKay, 35-37.
131. See Krupp and Horn, Earth: The Sequel , 88-89; ht p://w w w.amy ris.com/.
132. See Nicola Stuber and others, “The Importance of the Diurnal and Annual
Cycle of Air Traffic for Contrail Radiative Forcing,” Nature 441 ( June 15,
2006), 864-67, doi:10.1038/nature04877.
133. Elisabeth Rosenthal, “Burning Fuel Particles Do More Damage to Climate
han hought, Study Says,” New York Times , January 15, 2013, htp://www.
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