Renewables key in race against climate change clock

Any plausible game plan for capping the rise of Earth's surface temperature depends on replacing fossil fuels with energy sources that generate little or no carbon pollution.

Fuel savings can pay for green energy shift

Making the global switch from climate-altering fossil fuels to renewables by 2050 would require an extra $1 trillion (880 billion euros) per year, but the bill will be covered by lower energy costs, a Greenpeace report said ...

Boosting gas mileage by turning engine heat into electricity

Automakers are looking for ways to improve their fleets' average fuel efficiency, and scientists may have a new way to help them. In a report in the journal ACS Applied Materials & Interfaces, one team reports the development ...

Amazon's carbon uptake declines as trees die faster

The most extensive land-based study of the Amazon to date reveals it is losing its capacity to absorb carbon from the atmosphere. From a peak of two billion tonnes of carbon dioxide each year in the 1990s, the net uptake ...

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