“There is still zero empirical evidence that anthropogenic production of CO2 is making any measurable contribution to the world’s present warming trend.”

— Alexander Cockburn

"Is Global Warming a Sin?" Counterpunch (28-30 April 2007).

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Alexander Cockburn 7

Leftist journalist and writer 1941–2012

Ian Plimer book Heaven and Earth

Heaven and Earth (2009)

“After pondering deeply the general trends of the world and the actual conditions obtaining in Our Empire today, We have decided to effect a settlement of the present situation by resorting to an extraordinary measure.”

Hirohito Jewel Voice Broadcast

Gyokuon-hōsō (1945)
Context: After pondering deeply the general trends of the world and the actual conditions obtaining in Our Empire today, We have decided to effect a settlement of the present situation by resorting to an extraordinary measure.
We have ordered Our Government to communicate to the Governments of the United States, Great Britain, China and the Soviet Union that Our Empire accepts the provisions of their Joint Declaration.

“There were no CO2 emitting industries in the Medieval Warming. This natural warming event was greater than the Late 20th Century Warming, which we are told is due to human emissions of CO2.”

Ian Plimer book Heaven and Earth

Heaven and Earth (2009)

“It seems that, notwithstanding the dramatic increases in manmade CO2 emissions over the last decade, the world's warming has stopped.”

Tony Abbott (1957) Australian politician

Quoted in "2009 Australia's second warmest year ever, according to Bureau of Meteorology figures" http://www.heraldsun.com.au/news/australias-second-warmest-year-ever-according-to-bureau-of-meteorology-figures/story-e6frf7jo-1225816322149 in the Herald Sun, January 5, 2010.
2010

“Getting to near zero marginal cost and nearly free goods and services is a function of advances in productivity. Productivity is “a measure of productive efficiency calculated as the ratio of what is produced to what is required to produce it.” If the cost of producing an additional good or service is nearly zero, that would be the optimum level of productivity.”

Jeremy Rifkin (1945) American economist

The Zero Marginal Cost Society: The Internet of Things, the Collaborative Commons, and the Eclipse of Capitalism (2014)

“This goes back to the reason why alarmists abandoned the "global warming" term in favor of climate change. They can play this bait and switch, showing changes in climate (which always exist) and then blaming them on CO2. But there is no mechanism ever proposed by anyone where CO2 can change the climate directly without going through the intermediate step of warming. If climate is changing but we are not seeing warming, then the change can't be due to CO2.”

Anthony Watts (1958) American television meteorologist

Just where are those grid killing tornadoes anyway? http://wattsupwiththat.com/2009/06/17/just-where-are-those-grid-killing-tornadoes-anyway/, wattsupwiththat.com, June 17, 2009.
2009