Climate Climate & Energy

The top 10 reasons to give a hoot about biofuels

Well, here we are, at the end of Grist’s illustrious series on biofuels. We’ve thrown a lot of information at you, and we hope it’s becoming clear why biofuel production is a big, Relevant Thing that deserves your attention. But just in case you need more proof, behold: Grist’s Top 10 Reasons To Give a […]

Unusual Weather We’re Having, Ain’t It?

Number-crunchers say 2006 on track to be the sixth-hottest on record As 2006 limps to a close, it’s measuring in as the world’s sixth-hottest year on record. It’s the warmest Britain has seen since wenches were hoisting tankards of grog (er, since records began in 1659), and the third-warmest in the U.S.’s Lower 48 since […]

‘The Medieval Warm Period was just as warm as today’–Repeating this point does not make it true

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

Objection: It was just as warm in the Medieval Warm Period (MWP) as it is today. In fact, Greenland was green and they were growing grapes in England!

Answer: There is no good evidence that the MWP was a globally warm period comparable to today. Regionally, there may have been places that exhibited notable warmth -- Europe, for example -- but all global proxy reconstructions agree it is warmer now, and the temperature is rising faster now, than at any time in the last one or even two thousand years.

‘It was warmer during the Holocene Climatic Optimum’–This period was not global and not like today

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

Objection: It was warmer during the Holocene Climatic Optimum than it is today -- without any human influence.

Answer: Though some temperatures during that period were in the same range as today, they were confined to the northern hemisphere and the summer months.

The strangest biofuel sources you’ve never heard of

Sure, you’ve heard of corn and switchgrass as potential sources of biofuel. But those are rendered totally boring in light of the potential of trash, dead cats, and human fat to meet our energy needs. Make your engine purr. Photo: iStockphoto Surprising sources abound in the world of biofuels, with researchers probing the farthest reaches […]

What Brazil can teach the U.S. about energy and ethanol

In 2006, Brazil officially achieved “energy independence” — that is, its oil exports came into line with imports and cancelled them out. No longer beholden to foreign suppliers for its energy needs, the nation theoretically has no stake in costly Middle East military adventures to secure access to oil reserves. Grain alcohol? Haven’t touched the […]

As its neighbors back biofuels, Central America gears up for business

Driving down either of El Salvador’s two principal highways, you’re almost sure to end up braking behind a pickup truck that’s jammed with people standing shoulder to shoulder. Occasionally these rural taxis are new vehicles, but most are rickety, rusted, and running on antiquated engines and exhaust-spewing diesel. Even though 48 percent of Salvadorans live […]

Not Just for Stockings Anymore

Plans for coal plants in Texas, Kansas fueling opposition from all sides As U.S. utilities try to keep pace with the energy-sucking public, they’re planning 150 new coal-fired plants. But with coal plants already causing a third of the nation’s carbon dioxide emissions, critics are emerging from all corners. A heated battle in Texas over […]

‘Hansen has been wrong before’–Maybe, but not about the climate!

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

Objection: In 1988, Hansen predicted dire warming over the next decade -- and he was off by 300%. Why in the world should we listen to the same doom and gloom from him today?

Answer: While in some instances it is ignorant repetition of misinformation, at its source this story is a plain lie.

It’s time for a real ‘food vs. fuel’ debate

Can U.S. farmers keep filling the nation’s bellies as they scramble to fuel its cars? Given its evident gravity, the question has drawn remarkably little debate. Like it or not, though, more and more food is being devoted to fueling the nation’s 211-million-strong auto fleet. High gasoline prices, a dizzying variety of government supports, and […]