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The shipping blues

Cargo ships carry a lot of climate baggage

The shipping industry must make huge cuts in CO2 emissions in order to avoid the worst effects of climate change.

Climate & Energy

Climate change is the next market crash, says former Treasury secretary

If we don't act fast and act big with a carbon tax, says Henry Paulson, we'll face a crisis that will dwarf the banking collapse.

a tough way to make money

Disprove global warming, score $10,000

A physicist is offering a cash prize to anyone who can disprove humanity's role in global warming. He's not too worried about losing any money.

PAC mentality

Now climate hawks have their own super PAC

It's called, appropriately, Climate Hawks Vote, and it aims to elect outspoken climate leaders to Congress, not just Democrats who quietly vote the right way.


A mapping group at MIT wants to show us the way to greener cities

Sep Kamvar's slick data maps help urbanites recognize the elements that they love, and the ones that need some tweaking.


Ask Umbra: Is it safe to use newspaper as garden mulch?

A reader frets about dioxins in his topsoil. It's a dirty question, but somebody's got to answer it.

Resistance is fertile

How we can fight back against herbicide-resistant superweeds

Roundup is losing potency as weeds evolve resistance. Seed companies want to move to other herbicides. Is farming stuck in a spray-rinse-repeat cycle?

Business & Technology

Nebraska utility is phasing out some coal units, and it won’t cost that much

The Omaha Public Power District announced that it will retire three coal units in the next two years -- thanks to public opinion and new regs.

Climate & Energy

Jon Stewart explains how to make GOP senators care about climate

"Barack Obama must become a global warming denier," says the Daily Show host. "We'd have cap-and-trade by the morning."

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