Climate Climate & Energy

Deceivin’ Stephen

Canadians clamor for climate action while their leader ducks the issue Canadians are more concerned about the earth than at any time in the last 15 years, says a new poll. Some 26 percent feel the environment is more deserving of government attention than any other issue, and more than half of those polled would […]

Do You Zaire What I Zaire?

Africa already feeling effects of climate change, will be hit harder While some people question whether climate change is happening, many Africans are already beginning to feel its effects — and, says a new U.N. report, the continent is at greater risk than previously thought. Some 480 million Africans could face water-security issues by 2025 […]

Homeland Insecurity

World’s energy future looks dim, says new report A report issued today by the International Energy Agency says global demand for power could surge 53 percent by 2030 unless governments push clean, efficient energy. “The energy future we are facing today, based on projections of current trends, is dirty, insecure, and expensive,” says Claude Mandil, […]

‘Global warming stopped in 1998’–Only if you flagrantly cherry pick

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

Objection: Global temperatures have been trending down since 1998. Global warming is over.

Answer: At the time, 1998 was a record high year in both the CRU and the NASA GISS analyses. In fact, it blew away the previous record by .2 degrees C. (That previous record went all the way back to 1997, by the way!)

According to NASA, it was elevated far above the trend line because 1998 was the year of the strongest El Nino of the century. Choosing that year as a starting point is a classic cherry pick and demonstrates why it is necessary to remove chaotic year-to year-variability (aka: weather) by smoothing out the data. Looking at CRU's graph below, you can see the result of that smoothing in black.

Under the Macroscope

Protests, international conference focus on U.S. climate stubbornness How many delegates does it take to convince the U.S. to address climate change? No one knows, but the 5,000 gathered in Nairobi, Kenya, for the latest U.N. climate conference are giving it a shot. The two-week event opened today with remarks from Kenyan Vice President Moody […]

Should we worry about sudden climate shifts?

We hear a lot about climate "tipping points" in the news. You may very well be wondering what a tipping point is and whether it's something to be concerned about.

To understand a tipping point, imagine that you're sitting in a canoe and you start to lean your body over one side. The canoe will slowly rotate (I think the nautical term is "list") as you lean ever further -- until, that is, you lean just far enough, and suddenly the canoe flips over, sending you into the water. You've just encountered a tipping point.

The worry is that the climate will slowly warm as CO2 is added -- until we cross a tipping point, at which point the climate abruptly shifts into a new and possibly very different state. If this happens, it would likely be a disaster of Biblical proportions, unleashing unimaginable suffering and hardship.

‘Antarctic ice is growing’–Well, probably not, but even if it were, we are not off the hook

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

Objection: The Antarctic ice sheets are actually growing, which wouldn't be happening if global warming were real.

Answer: There are two distinct problems with this argument.

First, any argument that tries to use a regional phenomenon to disprove a global trend is dead in the water. Anthropogenic global warming theory does not predict uniform warming throughout the globe. We need to assess the balance of the evidence.

‘What about mid-century cooling?’–No one said CO2 is the only climate influence

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

Objection: There was global cooling in the '40s, '50s, and '60s, even while human greenhouse-gas emissions were rising. Clearly, temperature is not being driven by CO2.

‘The satellites show cooling’–No, they don’t

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

Objection: Satellite readings, which are much more accurate, show that the earth is in fact cooling.

I wonder how long before this one stops coming up?

Open and Shut Up Case

Agencies investigate claims of muzzling by Bush administration Has the Bush administration tried to suppress climate-change research? We’d tell you, but there’s a guy in a trench coat watching us type. Maybe inspectors general at NASA and the Commerce Department will have better luck as they investigate claims that climate scientists were muzzled by political […]