Sentences with phrase «causing global dimming»

do they not see & understand that the jets spray are CAUSING the global dimming?

The data has been massaged to make them fit the models, but then the new figure are completely incompatible with the effects of aerosols which it is purported are causing global dimming.

Human aerosol emissions are also offsetting a significant amount of the warming by causing global dimming.

The data has been massaged to make them fit the models, but then the new figure are completely incompatible with the effects of aerosols which it is purported are causing global dimming.

What causes the global dimming and how does that affect the numbers?

«in the meantime we have to pump sulphur via aircraft exhausts into the upper atmosphere to cause global dimming»

Actually, if we do take it seriously and say — cut down or stop burning fossil fuels — we jump up.5 to 3 degrees C. (due to the reduction of our sulfate caused global dimming).

Not exact matches

There have been articles as far back as the 70s concerning global dimming but it's only very recently, apparently, that all of the probable causes (e.g. the microscopic particles causing smaller water droplets in clouds, enhancing the mirror effect, as well as contrails) have been understood.

The stifling of the warming trend is generally attributed to a counteracting cooling effect caused by global dimming, an inference that has since been supported by data collected by Ramanathan and others from a number of field campaigns.

«A rapid cutback in greenhouse gas emissions could speed up global warming... because current global warming is offset by global dimming — the 2 - 3ºC of cooling cause by industrial pollution, known to scientists as aerosol particles, in the atmosphere.»

There have been articles as far back as the 70s concerning global dimming but it's only very recently, apparently, that all of the probable causes (e.g. the microscopic particles causing smaller water droplets in clouds, enhancing the mirror effect, as well as contrails) have been understood.

Absent this further study (which we expect is ongoing as part of the assessments related to the IPCC 4th Assessment report), it is horribly premature to declare «global dimming» the cause of this event.

Dr Rotstayn says that «what our model is suggesting is that these droughts in the Sahel in the 1970s and the 1980s may have been caused by pollution from Europe and North America» and the commentary goes on to say «if his model is correct...» So the science is certainly not presented without caveats, and nowhere do we simply state that global dimming is unquestionably the cause of the Sahel drought.

The cause is likely to be a combination of local and global factors such as warming - induced drought and global dimming.

«Global Dimming: A Review of the Evidence for a Widespread and Significant Reduction in Global Radiation with Discussion of Its Probable Causes and Possible Agricultural Consequences.»

There is evidence for both local and regional causes (e.g. drought stress) as well as global scale causes (e.g. global dimming).

As with volcanos, the removal of the dimming SO2 aerosols caused the climate to warm up, the expected physical response — and the sole cause of global climate change.

You have one basic misunderstandiing about global dimming, it is not caused by CO2 but by SO2 and particulate pollution, what are called aerosols.

During dimming (1950s — 80s) the decline in surface solar radiation (SSR) may have outweighed increasing atmospheric downwelling thermal radiation (LW) from enhanced greenhouse gases and effectively counteracted global warming, causing only little increase in surface thermal emission (LW).

And their almost continuous chemtrail spraying of our skies now, is most likely the major cause of any «global dimming.»

It says pollution is the cause of global dimming and it doesn't mention geoengineering so it's misinformation in my opinion.

New paper finds changes in cloud cover caused global brightening & dimming, not man - made aerosols

Stanhill, G. & Cohen, S. Global dimming: a review of the evidence for a widespread and significant reductions in global radiation with discussion of its probable causes and possible agricultural consequGlobal dimming: a review of the evidence for a widespread and significant reductions in global radiation with discussion of its probable causes and possible agricultural consequglobal radiation with discussion of its probable causes and possible agricultural consequences.

The aerosol hypothesis is that sulfate aerosols and black carbon are the main cause of global dimming, as they tend to act to cool the Earth by reflecting and scattering sunlight before it reaches the ground.

While global dimming may be causing us to under - estimate the amount of global warming, other effects may be causing us to over-estimate it.

In addition to Adrian Burd's recommendation, Al should read the comprehensive review by Wild: «Global dimming and brightening: A review» http://www.leif.org/EOS/2008JD011470.pdf «Recent brightening can not supersede the greenhouse effect as the main cause of global warming, since land surface temperatures overall increased by 0.8 °C from 1960 to 2000, even though solar brightening did not fully outweigh prior dimming within this period...» The story is nowhere near as simplistic as Al would haGlobal dimming and brightening: A review» http://www.leif.org/EOS/2008JD011470.pdf «Recent brightening can not supersede the greenhouse effect as the main cause of global warming, since land surface temperatures overall increased by 0.8 °C from 1960 to 2000, even though solar brightening did not fully outweigh prior dimming within this period...» The story is nowhere near as simplistic as Al would haglobal warming, since land surface temperatures overall increased by 0.8 °C from 1960 to 2000, even though solar brightening did not fully outweigh prior dimming within this period...» The story is nowhere near as simplistic as Al would have it.