The drop comes after researchers found VW engineers gamed software to fool emissions tests – and meanwhile, US may see a record year for car sales.
German auto giant Volkswagen revealed that 11-million of its diesel cars worldwide are equipped with devices that can cheat pollution tests.
Six large energy companies have asked the United Nations for help in setting up a carbon pricing scheme that would include their operations.
Can government afford to reconsider the imposition of a fee for pollution given the economic stresses that the country is currently facing?
The UN climate talks in Lima, Peru, head for weakened deals in Lima on limiting global warming as meetings continue for an extra day.
During secret negotiations, the US pledged to cut its emissions by 28% by 2025 and China promised to reach a peak in emissions by 2030.
Latest research shows that eating less red meat would have a greater impact in cutting carbon emissions than giving up cars.
Badly designed, poorly laid out and under pressure – the data centre is on the verge of becoming the environmental bad boy, writes Andrew Oldfield.
A report on greenhouse gas emissions says just 90 carbon emitters, some of which are South African, are reponsible for two-thirds of global emissions.
Levies have reduced emissions and, with a few tweaks, their economic effects will be manageable.
The food being wasted yearly adds to the earth's carbon emission and means that large amounts of land is used to grow food that is not consumed.
Research shows that the global concentration of CO2 emissions has risen to a level not seen in two million years.
A commonly held view is that the private sector has large amounts of capital and is not investing it in low-carbon and other development projects.
Levels of carbon dioxide in the atmosphere have hit 400 parts per million, a level not seen in two-million years.
The heatwaves, flooding and bush fires striking Australia have already been intensified by climate change and are set to get worse, says a new report.
The carbon tax is unique in that it encourages companies to lower their carbon intensity, and create a resource efficient economy, says experts.
In an accidental discovery, scientists have found that sea urchins could provide a cheap and sustainable solution to carbon emissions.