Been There, Exceeded That

By Willis Eschenbach – Re-Blogged From http://www.WattsUpWithThat.com

Much angst has been expended on a very vague climate threshold, the so-called “2 degrees Celsius limit”, sometimes called the “2° global warming tipping point”.  I find it all quite hilarious, for a reason that will become clear shortly. First a bit of prologue. Here’s the New Republic from 2014 about the two-degree limit:

This Is What Our Hellish World Will Look Like After We Hit the Global Warming Tipping Point

BY REBECCA LEBER, December 21, 2014

The de facto assumption of climate change policy is that the world must limit the increase in global temperatures to 3.6 degrees Fahrenheit (2 degrees Celsius) above pre-Industrial levels, or risk hitting a tipping point where the impact becomes irreversible.

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Weekly Climate and Energy News Roundup #297

By Ken Haapala, President, Science and Environmental Policy Project

Brought to You by www.SEPP.org

Quote of the Week. “Nullius in verba” – “Nobody’s word is final.” Motto of the Royal Society, Freeman Dyson

Number of the Week: 54 Hoover Dams

Warming and Cooling? S. Fred Singer, our founder and newly elected Chairman Emeritus, is busily working on an interesting question: can carbon dioxide, a greenhouse gas, cause a cooling as well as a warming? The answer is YES, depending on subsidiary conditions.

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Global Warming Student Questions

Re-Blogged From Science and Environmental Policy Project

Letter to Dr Singer from students in Denmark asking important questions:

We are starting a project next week and the topic is “change”. We have chosen the subtopic “global warming”

Do you have the time to answer a few questions in writing?

1. What is behind global warming?

2. What can we do to prevent global warming?

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Weekly Climate and Energy News Roundup #296

By Ken Haapala, President,The Science and Environmental Policy Project

Brought to You by www.SEPP.org

Quote of the Week.“Whenever you find yourself on the side of the majority, it is time to pause and reflect.” – Mark Twain [H/t WUWT]

Number of the Week: $56.60

Warming and Cooling? S. Fred Singer, our founder and newly elected Chairman Emeritus, is busily working on an interesting question: can carbon dioxide, a greenhouse gas, cause a cooling as well as a warming? The answer is YES, depending on subsidiary conditions.

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Weekly Climate and Energy News Roundup #294

The Week That Was: December 2, 2017 Brought to You by www.SEPP.org

By Ken Haapala, President, The Science and Environmental Policy Project

38.5 Years of Data: Using atmospheric data collected by satellites from January 1979 to June 2017, John Christy and Richard McNider of the Earth System Science Center at the University of Alabama in Huntsville (UAH) estimate the maximum effect increasing carbon dioxide (CO2) may have on atmospheric temperatures – an upper bound of climate sensitivity to increasing CO2. They do this by using widely accepted statistical techniques to eliminate the effects of two well established natural types of occurrences have on atmospheric temperatures – volcanoes and the El Niño Southern Oscillation (ENSO).

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Does Air Pollution Really Shorten Life Spans?

[I highly recommend Dr Goklany’s book “The Improving State of Our World.” It’s a thick book for not so much money. -Bob]

By Dr. Indur M. Goklany – Re-Blogged From http://www.WattsUpWithThat.com

Periodically we are flooded with reports of air pollution episodes in various developing countries, and claims of their staggering death toll, and consequent reductions in life spans. The Economic Times (India), for example, recently claimed:

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