Sentences with phrase «long atmospheric lifetime»

Because most fluorinated gases have a very long atmospheric lifetime, it will take many years to see a noticeable decline in current concentrations.

Although the hole has begun to heal, the ozone - destroying chemicals have long atmospheric lifetimes.

The 1989 Montreal Protocol led to the phaseout of those chemicals, but their long atmospheric lifetime means that seasonal ozone losses will persist well into this century.

«Even with mitigation efforts, climate change will continue to unfold for decades due to the long atmospheric lifetime of past greenhouse - gas emissions and the gradual release of excess heat that has built up in the oceans,» reads the report.

«It is ironic that high concentrations of molecules with high global warming potential (GWP), the worst - case scenario for Earth's climate, is the optimal scenario for detecting an alien civilization, as GWP increases with stronger infrared absorption and longer atmospheric lifetime,» say the authors.

Conversely, if a molecule has a longer atmospheric lifetime than CO2 its GWP will increase with time.

With a long atmospheric lifetime of about 6 months, mercury emissions spread across the globe.

«Even with mitigation efforts,» the Summit report says, «climate change will continue to unfold for decades due to the long atmospheric lifetime of past greenhouse - gas emissions and the gradual release of excess heat that has built up in the oceans.

These gases have potential as long - term contributors to climate forcing because of their high per - molecule radiative forcing and long atmospheric lifetimes.

Carbon that is stored and released through natural processes such as the normal seasonal carbon breathing that occurs in plant life has a longer atmospheric lifetime.

Note: methane gas has a longer atmospheric lifetime than it's breakdown product, C02, and hence methane has a much higher climate forcing potential.

Conversely, if a molecule has a longer atmospheric lifetime than CO2 its GWP will increase with the timescale considered.

Because of the long atmospheric lifetime of some of the main greenhouse gases, such as carbon dioxide, there is a mismatch between the payoff from climate change mitigation, which involves reducing emissions of planet warming greenhouse gases to lessen to severity of climate change, and climate change adaptation, which refers to measures to better withstand the impacts of climate change.

Thus their atmospheric destruction rate is slow, which means HFCs and PFCs can have very long atmospheric lifetimes, of the order of thousands of years for PFCs.

They can also have long atmospheric lifetimes — in some cases, lasting thousands of years.