Climate Climate & Energy

‘The temperature record is unreliable’–But temperature trends are clear and widely corroborated

(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: The surface temperature record is full of assumptions, corrections, differing equipment and station settings, changing technology, varying altitudes, and more. It is not possible to claim we know what the "global average temperature" is, much less determine any trend. The IPCC graphs only say what the scientists want them to say.

The Best Damn Solar Show, Period

U.S. renewable advocates say their power is bigger and better If America has to resort to renewables, we’re gonna do it in butt-kickin’ style. Yesterday, Arizona approved rules that would require a 15 percent renewable-energy mix by 2025, pending certification from its attorney general. “Move over California,” said utility commissioner Kris Mayes. “We are making […]

‘Glaciers have always grown and receded’–A few glaciers melting does not mean global warming

(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: A few glaciers receding today is not proof of global warming. Glaciers have grown and receded differently in many times and places.

The Texas Supply-chain Massacre

Federal agency says cost-cutting a factor in fatal BP refinery explosion Ooh, what a little belt-tightening can do: a new federal review says cost-cutting by BP contributed to the 2005 refinery explosion in Texas City, Texas, that killed 15 workers and injured 180 others. Carolyn Merritt, chair of the U.S. Chemical Safety Board, says the […]

Hauntingly Familiar

Groundbreaking climate report inspires predictable political responses World reaction to yesterday’s U.K. report linking climate change with possible economic ruin has been swift — and painfully predictable. While British Prime Minister Tony Blair and his likely successor Gordon Brown hailed the findings, Kyoto-resisters Australia and the U.S. offered more lukewarm responses. Australian Prime Minister John […]

It’s a poor indicator of progress on global warming

A recent news article about the Stern Report contained the following gem from a Bush administration spokeswoman:

The statement from spokeswoman Kristen Hellmer said the United States is "well on track to meet the president's goal to reduce greenhouse gas intensity of our economy 18 percent by 2012."

This statement makes it sound like the Bush administration is taking on the problem of climate change head-on, with an aggressive program to reduce emissions.

But it ain't so.

‘One record year is not global warming’–Luckily, there are plenty more years to consider

(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: So 2005 was a record year. Records are set all the time. One really warm year is not global warming.

Answer: This is actually not an unreasonable point -- single years taken by themselves can not establish or refute a trend. So 2005 being the hottest globally averaged temperature on record is not convincing. Then how about:

It ain’t a Senate website

I listened with great interest to the audio recording of the SEJ panel discussion described in David Roberts' recent blog post.

Much of the argument there can be distilled down to one simple question:

Where can I find credible answers to scientific questions about climate change?

Here's the scientific community's answer: look to the peer-reviewed scientific literature. A strong consensus there is the closest thing we have to well-founded knowledge, and it is entitled to substantial deference in policy debates. And if a reporter wants to write about what the "scientific community" thinks, this consensus is what they should report.

‘The scientists aren’t even sure’ — No scientist ever is

(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: Even the scientists don't know that the climate is changing more than normal and if it's our fault or not. If you read what they write it is full of "probably," "likely," "evidence of" and all kinds of qualifiers. If they don't know for sure, why should we worry yet?

‘One hundred years is not enough’–Yes it is

(Part of the How to Talk to a Global Warming Skeptic guide)

Objection: One hundred and some years of global surface temperatures is not long enough to draw any conclusions from or worry about anyway.

Answer: The reliable instrumental record only goes back 150 years in the CRU analysis, 125 in the NASA analysis. This is a simple fact that we are stuck with. 2005 was the warmest year recorded in that period according to NASA, a very close second according to CRU. Because of this limit, it is not enough to say today that these are the warmest years since 150 years ago, rather one should say 'at least':

1998 and 2005 are the warmest two years in at least the last 150.