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Dr. Ron Lembke
 Sun sends UV? Infrared – show on spectrum
 CO2 collects in Troposphere
 Ozone O3 layer – absorbs ultraviolet radiation from sun
Magnetic field of Earth creates
radiation belts.
These protect us from particles
flying at Earth via solar wind
(stream of ionized gases at 400
km/sec)
Frank Capra, 1958
 Find the Pie chart ~ 30% cooling
“The Myth of The 1970s Global Cooling Scientific Consensus,” Thomas C.
Peterson, William M. Connelly, and John Fleck, American Meteorological Society,
Sept. 2008, p. 1235
 In the US, it’s a political issue, so there must be two
sides?
 CO2
 280 ppm for human history
 Last 250 years up to 384 ppm – where we are now
 Milankovich Cycles (pp 117-8):
 Earth’s orbit not circular, 100,000 year cycle
 Tilted axis shifts: 40,000 year cycle
 Plane of orbit relative to sun: 21,000 year cycle
 Seems unlikely
400
390
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370
360
350
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330
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310
300
1950
1960
1970
1980
1990
2000
2010
Data: National Oceanic and Atmospheric Administration
Graph: Ron Lembke, 1/12/2010
2020
 3.2 billion metric tons of carbon added to atmosphere
annually from human activities
 Agriculture represents 25%
 Cars and transport?
http://www.eia.doe.gov/oiaf/1605/ggccebro/chapter1.html
Increased emissions from
Both industrial and developing
world
Carbon Intensity by Region, 2001-2025
(Metric Tons of Carbon Equivalent per
Million $1997)
 We’re at 384 ppm
 450 ppm would be 2°C increase
 550 ppm would lead to 3° C increase
 Used to be target
 Pests not killed by freezes
 Ice sheets melting faster than predicted
 Oceans more acidic than thought
 350? Really hard
 Methane = 23x CO2
 CO2 lasts for thousands of years
 1. Yes, I think the globe has warmed a bit! Approximately
0.74 degree Celsius (+/- 0.18 degree) in the past 100 years.
 Yes, I think that man might be responsible for some part of
that warming, although I’m not 100 percent convinced of
how much
 The cost of generating power from wind has dropped by 60
percent since 1990, and power from the first solar cells in
satellites is now 98.7 cheaper than when it was introduced.
 These technologies will be adopted by the world when and only when-- they make economic sense, not when we
have to depend on countries like Russia and China to be
virtuous. Sure, our government can help in the form of tax
breaks and incentives, but capitalism is already well on its
way to solving this problem itself.
 Climate change poses clear, catastrophic threats. We
may not agree on the extent, but we certainly can't
afford the risk of inaction.
 We must transform the way we use energy, and of
course not only because of climate change...
 When I look around the world today, I see continued
dependence on oil from vulnerable regions... and oil
money going to leaders of countries hostile to us. Then
there's accelerating development in China, India and
other developing economies that are reliant on fossil
fuels.
 News Corp. owns Fox.
 “Climate change poses clear, catastrophic threats” and that
“We may not agree on the extent, but we certainly can’t
afford the risk of inaction.”
 Rupert Murdoch, May 9, 2007
 James Murdoch, heir apparent
 “Thanks to friendships with Al Gore and Bill Clinton, he has
developed deep green instincts,”
 London Telegraph
 Wife Kathryn Hufschmid works for Clinton Climate
Initiative
 Asked if climate change was a current or imminent threat,
83% of Britons agreed, with just 14% saying global warming
poses no threat. Compared with August 2009, when the
same question was asked, opinion remained steady
 An analysis of those who think climate change poses no
threat reveals them to be predominantly men (70%) and
about twice as likely to be over 65 and to have voted
Conservative in 2010 than the general population.
 In 2007, the UN's science panel collated the work of
thousands of scientists to conclude that the link between the
emission of greenhouse gases by human activities and
climate change was 90% certain.
 GE – Frank Mantero, Director Corporate
Citizenship Programs
 Audited, like financial statements
 40% of value based on reputation
 It’s not “giving” back – it’s a partnership
 Wal-Mart
 Sustainable Supply Chain
 “We’re making money at this”