• Highway repair fund, paid for with gas-tax revenue, is nearly depleted.

• Want to put stinkweed in your tank?

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• Climate change could harm giant sequoias.

• Engineers unveil new generation of tidal turbines.

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• Power outages from hurricanes hamper gasoline production.

• Iraqi marshes thought to be site of Garden of Eden will be a World Heritage Site.

&bull Pyrenees glaciers may melt by 2050.

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