Sentences with phrase «masking effect of aerosol»

Unfortunately, mean temperatures have risen much further when account is taken of the short - term masking effect of aerosols emitted from coal and oil, mainly sulphur dioxide and its oxidized products... «Thus, according to -LSB-...]

Not exact matches

The observed amount of warming thus far has been less than this, because part of the excess energy is stored in the oceans (amounting to ~ 0.5 °C), and the remainder (~ 1.3 °C) has been masked by the cooling effect of anthropogenic aerosols.
Research by an international team of scientists recently published in the journal Geophysical Research Letters says that the cooling effect of aerosols is so large that it has masked as much as half of the warming effect from greenhouse gases.
However, there is a price of sorts — while locally the Asian Brown Cloud amplifies the greenhouse effect, globally it masks the greenhouse effect due to the aerosol - induced global dimming.
This is a peer reviewed paper by respected scientists who are saying that aerosol forcing means that the majority of the warming caused by existing co2 emission has effectively been masked thus far, and that as aerosols remain in the atmosphere for far shorter a duration of time than co2, we will have already most likely crossed the 2 degree threshold that the G8 politicians have been discussing this week once the cooling effect of aerosols dissipate.
Climate Resistance: What are the implications of this work for the idea that the post-war temperature decline is the result of sulphate aerosols masking the warming effect of CO2 emissions?
The orthodox explanation for that one is that the cooling effect of white aerosols such as sulphates — released from coal and oil burning — was masking the warming effect of greenhouse gases until various clean air acts allowed the anthropogenic warming trend to re-emerge.
Similarily, the uncertainty in aerosols is mostly in the data (and then cloud effects), the «masking» effect is a result of the model's physics it isn't just parameterized and fed in.
The problem arises, I believe, when strong feedbacks, «masking» effects of aerosols and volcanoes and other uncertain assumptions are fed into computer models to generate catastrophic scenarios for the near - medium future.
The team found that 74 percent of the warming that occurred during 1964 to 2010 was indeed masked by the aerosol cooling effect.
Secondly as well as the CO2 there are aerosols that mask about half the effect of the CO2, those aerosols will wash out about twelve months after we stop polluting.
In particular, increases in the number of small particles (called aerosols) in the atmosphere regionally offset and mask the greenhouse effect, and stratospheric ozone depletion contributes to cooling of the upper troposphere and stratosphere.fr2], fr3]
The most current research shows that aerosols do temporarily cool the planet, masking the ongoing effects of global warming.
«It is well understood that [aerosols»] presence is masking a substantial amount of greenhouse gas warming,» says Cat Scott, a research fellow at the University of Leeds whose own work has helped scientists understand the cooling effect of aerosols.
Hmmm... don't suppose it occurred to anyone to check the amount of anthropogenic aerosols that were emitted during this time frame 1940 - 1970, or the fact that aerosols have an immediate cooling effect on troposphere temperatures that can mask the underlying warming caused by the CO2 emissions that also accompany the aerosols.
This is because the net warming it reports includes the cooling effects of aerosols which partly masks the warming caused by greenhouse gases.
Schwartz seems quite panicky though about the possibility of a huge masking aerosol effect which is why he did that work to pin down the CO2 sensitivity.
Global Climate Change Another Dire Global Warming Effect: 10 Times as Many Ocean Dead Zones Global Warming to Blame for 37 % of Droughts Human - Generated Aerosols May be Masking the Warming Effects of Climate Change
Whilst apparently long known to exert a cooling effect on climate, human - generated aerosols have partly masked the warming effect of increasing greenhouse gases.
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