Cndi 2011 sps negative Polin/Brockway/Blumenthal Lab

Global Warming Good 1/3

Melting icecaps open up new oil deposits and shipping routes

But some see a lucrative silver lining of riches waiting to be snatched from the deep, and the prospect of timesaving sea lanes that could transform the shipping industry the way the Suez Canal did in the 19th century.

Global warming lengthens growing seasons, photosynthetic growth, and alarmists are biased

Patrick J. Michaels, 11/3/04, Cato Institute (Author is a senior fellow in environmental studies at the Cato Institute and author of Meltdown: The Predictable Distortion of Global Warming by Scientists, Politicians, and the Media (2004).) (http://www.cato.org/pub_display.php?pub_id=2872)

Objectively speaking, any environmental change should have both positive benefits and negative effects. For example, theory predicts and observations confirm that human-induced warming takes place primarily in winter, lengthening the growing season. Satellite measurements now show that the planet is greener than it was before it warmed. There are literally thousands of experiments reported in the scientific literature demonstrating that higher atmospheric carbon dioxide concentrations -- cause by human activity -- dramatically increase food production. So why do we only hear one side about global warming?
Perhaps because there's little incentive for scientists to do anything but emphasize the negative and the destructive. Alarming news often leads to government funding, funding generates research, and research is the key to scientists' professional advancement. Good news threatens that arrangement.
Global Warming Good 2/3

Global warming is good, but human activities could not have caused it

Senator Mark R Warner, 10/4/09, Climate Realists (http://climaterealists.com/index.php?id=4127)

Then just 12,000 years ago, there was dramatic natural global warming - ice sheets melted, sea levels rose and the warming seas expelled carbon dioxide. The warmth and extra carbon dioxide plant food in the atmosphere encouraged the spread of grasslands, forests, animals and humans over lands once covered by thick, barren sheets of ice.
None of these beneficial climate changes were caused by emissions from the camp fires of the Cave Men. Since then earth has experienced a see-saw of minor natural heating and cooling. The most recent warming phase started at the depth of the Little Ice Age about 300 years ago, before James Watt invented the steam engine. There were no emissions from cars, trucks, trains, planes or cement plants, but still the planet warmed up.
Climate fluctuations continue in modern times, but not in step with industrial man’s carbon dioxide emissions. When industry declined in the Great Depression of the 1930s, CO2 emissions fell but temperatures rose to a peak. Then during the immediate post war boom in industry, emissions soared but temperatures fell and there were fears of a new ice age starting. Now, since the start of the new century, with emissions from China and India booming, world temperatures are again falling.

Global Warming causes life to flourish

Judith Parrish, 10/15/98, (Geologist at the University of Arizona, paleoclimatologist), Scienceagogo.com (http://www.scienceagogo.com/news/19980915065904data_trunc_sys.shtml)

Yet despite the darkness and polar location, the fossils indicated that the lands in question supported a thriving forest during the mid-Cretaceous. Parrish and her colleagues believe the forests resembled modern-day forests of western Oregon, with a canopy of cone-bearing trees shading an understory of ferns and horsetails.
Yet the warmer poles did not necessarily mean hotter tropical climates, as Parrish points out. Other researchers have found evidence for relatively stable temperatures in the lower latitudes around the equator when comparing the Cretaceous to modern times. "When you have global change, the action is in the higher latitudes," Parrish explained. Computer models today predict most of the 2 to 7 degree Fahrenheit warming expected over the next century will also be centered on the poles rather than tropical regions.
Global Warming Good 3/3

Global warming is good for humanity: more precipitation, milder climates, more food, fewer deserts.

Thomas Gale Moore, 1995 (senior fellow at the Hoover institution, printed in The Public Interest, “Global Warming: A boon to man and animals”), (http://www.stanford.edu/~moore/Boon_To_Man.html)

Only if warmer weather caused more droughts or lowered agricultural output would even Third World countries suffer. Should the world warm -- and there is little evidence or theory to support such a prognostication -- most climatologists believe that precipitation would increase. Although some areas might become drier, others would become wetter. Judging from history, Western Europe would retain plentiful rainfall, while North Africa and the Sahara might gain moisture. The Midwest of the United States might suffer from less precipitation and become more suitable for cattle grazing than farming. On the other hand, the Southwest would likely become wetter and better for crops. A warmer climate would produce the greatest gain in temperatures at northern latitudes and much less change near the equator. Not only would this foster a longer growing season and open up new territory for farming but it would mitigate harsh weather. The contrast between the extreme cold near the poles and the warm moist atmosphere on the equator drives storms and much of the earth's climate. This difference propels air flows; if the disparity is reduced, the strength of winds driven by equatorial highs and Arctic lows will be diminished. Warmer nighttime temperatures, particularly in the spring and fall, create longer growing seasons, which should enhance agricultural productivity. Moreover, the enrichment of the atmosphere with CO2 will fertilize plants and make for more vigorous growth. Agricultural economists studying the relationship of higher temperatures and additional CO2 to crop yields in Canada, Australia, Japan, northern Russia, Finland, and Iceland found not only that a warmer climate would push up yields, but also that the added boost from enriched CO2 would enhance output by 17 percent.[11] Researchers have attributed a burgeoning of forests in Europe to the increased CO2 and the fertilizing effect of nitrogen oxides.[12] Professor of Climatology Robert Pease writes that we may now be living in an "icehouse" world and that a warming of about two degrees Celsius, which is what his model indicates, may actually make the earth more habitable. The higher temperatures combined with more carbon dioxide will favor plant and crop growth and could well provide more food for our burgeoning global populations. Geologic history reveals that warmer global temperatures produce more, not less, precipitation, a fact reflected by a recent scientific investigation that shows the Greenland ice-cap to be thickening, not melting. So much for the catastrophic prediction that our coastlines will be flooded by a rise in sea level from polar meltwaters.[13]

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