carbon dioxide emissions

(CSIRO Australia) The latest figures on the global carbon budget to be released in Washington and Paris indicate a four-fold increase in growth rate of human-generated carbon dioxide emissions since 2000.

Despite widespread concern about climate change, annual carbon dioxide emissions from burning fossil fuels and manufacturing cement have grown 38 percent since 1992, from 6.1 billion tons of carbon to 8.5 billion tons in 2007.

A new assessment more than doubles previous estimates of the amount of carbon stored in permafrost, and indicates that carbon dioxide emissions from microbial decomposition of organic carbon in thawing permafrost could amount to roughly half those resulting from global land-use change during this century.

A transition to hydrogen vehicles could greatly reduce US oil dependence and carbon dioxide emissions, says a new congressionally mandated report from the National Research Council, but making hydrogen vehicles competitive in the automotive market will not be easy.

Vehicle costs are high, and the U.S. currently lacks the infrastructure to produce and widely distribute hydrogen to consumers.

The maximum practicable number of hydrogen vehicles that could be on the road by 2020 is 2 million, says the report.

Researchers are working on a thermoelectric generator that converts the heat from car exhaust fumes into electricity.

The module feeds the energy into the car's electronic systems. This cuts fuel consumption and helps reduce the carbon dioxide emissions from motor vehicles.

Levying a price on carbon dioxide released by electric generators could considerably reduce greenhouse gas emissions -- even before the deployment of any environmentally friendly technology -- according to scientists.

The top twenty carbon dioxide-emitting counties in the United States have now been identified. The top three counties include the cities of Houston, Los Angeles and Chicago.

Fittingly the county of Carbon, Pennsylvania is on the list.

A new, high-resolution, interactive map of US carbon dioxide emissions from fossil fuels has found that the emissions aren't all where we thought.

The maps and system, called Vulcan, show carbon dioxide emissions at more than 100 times more detail than was available before.

Until now, data on carbon dioxide emissions were reported monthly at the level of an entire state. The Vulcan model examines carbon dioxide emissions at local levels on an hourly basis.

A new, high-resolution, interactive map of US carbon dioxide emissions from fossil fuels has found that the emissions aren't all where we thought.

The maps and system, called Vulcan, show CO2 emissions at more than 100 times more detail than was available before.

Until now, data on carbon dioxide emissions were reported monthly at the level of an entire state. The Vulcan model examines CO2 emissions at local levels on an hourly basis.

The growth in China's carbon dioxide emissions is far outpacing the previously expected trajectory for the country, making the goal of stabilizing atmospheric greenhouse gases even more difficult, according to a new analysis.