Sentences with phrase «hydrofluorocarbon chemicals»

Trichloroethylene (TCE) is an industrial solvent used primarily to make hydrofluorocarbon chemicals.

Not exact matches

Manufacturers have introduced new families of chemicals containing no chlorine or bromine, called hydrofluorocarbons (HFCs), that have physical properties similar to the halons and no ozone depletion potential.

The rules proposed yesterday at the White House target hydrofluorocarbons (HFCs), a class of chemicals used in air conditioning, foams and refrigeration (E&EN ews PM, Oct. 15).

The amendment to the Montreal Protocol phasing down heat - trapping hydrofluorocarbons (HFCs), which was adopted in the early hours of Saturday in the Rwandan capital of Kigali, is in part the result of 7 1/2 years of lobbying and maneuvering by the Obama administration, environmental advocacy community and U.S. industry bent on using the ozone treaty to phase down the climate - forcing chemicals.

When world leaders reached a deal last month in Kigali to curb the use of hydrofluorocarbons (HFCs)-- planet - warming chemicals widely used in air conditioners and refrigerators — many boasted the move would prevent nearly 0.5 °C in warming by 2100.

The Court is correct that «[c] arbon dioxide, methane, nitrous oxide, and hydrofluorocarbons,» ante, at 26, fit within the second half of that definition: They are «physical, chemical,... substance [s] or matter which [are] emitted into or otherwise ente [r] the ambient air.»

SciDev.Net: Efforts to rid the world of hydrofluorocarbons (HFCs), a group of powerful greenhouse gases mainly used as refrigerants, may depend on developing nations being able to leapfrog these chemicals to less harmful alternatives, an environmental group has warned.

With the ozone hole already on its way to recovery, parties to the Protocol are targeting hydrofluorocarbons, a group of chemicals that are powerful catalysts of climate change.

Leaking refrigerants are a major cause of climate change because they predominantly consist of two families of synthetic manmade chemicals called hydrochlorofluorocarbons (HCFCs)-- both ozone depleting substances and super greenhouse gases (GHGs)-- and hydrofluorocarbons (HFCs)-- powerful GHGs...

Although the Montreal Protocol eliminated the use of most gases which were damaging the ozone layer, its job is not done as hydrofluorocarbons (HFCs)-- the chemicals which have replaced ozone - depleting substances — are now destroying our climate.

The class of chemicals called hydrofluorocarbons, used in refrigeration, have a greenhouse potency more than 1,000 times greater than carbon dioxide per molecule — but dissipate quickly in the atmosphere once emitted, so reducing them now can help avoid near - term climate impacts more effectively.

In a 2007 decision on this question, the Supreme Court ruled clearly on the question: «Carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons are without a doubt «physical [and] chemical... substance [s] which [are] emitted into... the ambient air.»