Banned chemical still depleting the ozone, says NASA

Carbon tetrachloride, banned under Montreal Protocol, still lingering in atmosphere

Cool and dangerous

Bad news for ozone layer

Mercury-laced food

Sun, sea and snow bring mercury down to the Earth and in the food

A monopoly like none other

An amendment to the Montreal Protocol without addressing IPR issues of HFOs would mean that the entire MAC sector would be at the mercy of three …

US agency proposes more stringent rules to curb downwind air pollution

The proposal is expected to reduce emissions from power plants in 23 states, protecting neighbouring states from ozone pollution

No consensus on HFCs at Montreal Protocol meet

Hydrofluorocarbons to be discussed in an informal group after many nations oppose formation of contact group to discuss the greenhouse gases

Science and Technology - Briefs

Science and Technology - Briefs

The gas game

Fluorocarbons, which created a hole in the ozone layer, have generated intense global debates. But these have been more about business than …

Climatic conundrum

Ice cover might be increasing in the West Antarctic contrary to its presumed collapse

Hole hazards

Daylight destruction

Rays of the rising sun burn a hole in the ozone layer every morning, claims a new study

Ozone layer threatenecl

Ozone holes

The World After

Climate change, pollution to increase chances of crop slowdown in future

Agencies affected by international food availability and price may require plan differently to cope with the projected slowdown, warns study

Fire, brimstone and cooling

Large volcanic eruptions contribute significantly to global cooling

More than unsafe

Safe ozone levels are often exceeded in Europe, says a study

Oh! zone

Hostile to ozone

Four chemicals said to be 'ecofriendly' are destroying the ozone layer

Whole lot of trouble

Global warming may aggravate ozone depletion in Arctic

Ozone therapy

Reduction of ozone-depleting substances could actually lead to the ozone layer repairing itself

Ozone hole smaller than 1990s level; scientists study reasons behind trend

NASA records reduction in ozone depletion as compared to 1998-2006 levels

Poisoned frogs?