Not exact matches
Note that the last remark can go either way, as the solar signal can even be more enhanced at the cost of the sensitivity for the greenhouse signal... And from Hansen ea.: «Solar irradiance
change has a strong spectral dependence [Lean, 2000], and resulting
climate changes may include indirect
effects of
induced ozone
change [RFCR; Haigh, 1999; Shindell et al., 1999a] and conceivably even cosmic ray
effects on clouds [Dickinson, 1975].
The signature
effects of human -
induced climate change — rising seas, increased damage from storm surge, more frequent bouts of extreme heat — all have specific, measurable impacts
on our nation's current assets and ongoing economic activity.
Please don't lose the bigger perspective and the undoubted
effects of high sea surface temperatures, of which a component is human
induced climate change,
on these events.
In a place where
climate change is already
inducing ever more annual droughts, this business in the name of mitigating
climate change is in fact causing a double
effect on people.
Yes, we may well be
inducing climate change, but there may be — in fact, there is — a moral argument that places industrial and economic development over mitigation, in spite of its
effect on the environment.
The letter begins «As you know, an overwhelming majority of
climate scientists are convinced about the potentially serious adverse
effects of human -
induced climate change on human health, agriculture, and biodiversity.»
Along with many other economists, my view
on global warming - associated
climate change is that the world is most unlikely to be able to agree and coordinate globally, and then sustain for the centuries required, the growth - denying policies that would be needed if we were to limit human -
induced global warming to any material
effect beyond the [continue reading...]
For instance AOGCM - based
climate scenarios do not usually allow for the
effect on climate of future land use and land cover
change (which is itself, in part, climatically
induced).
Which points out the anemic
effect that U.S. greenhouse gas reductions will have
on the
climate of the U.S. and just how easily the whims of foreign nations, not to mention Mother Nature, can completely offset any
climate changes induced by our greenhouse gas emissions reductions.»
The two authors acknowledge that it is «difficult» to isolate the influence of the ocean's
effects on temperature
changes and the influence of
climate - or radiation -
induced changes in driving temperature
change.
I would simply say that IPCC is a political organization whose charter is to investigate and report the» scientific basis of risk of human -
induced climate change, its potential impacts and options for adaptation and mitigation», IOW to evaluate the risk of human -
induced climate change and any negative
effects it may have
on our society and environment.
E.g., research assumes greenhouse gas emissions cause warming without explicitly stating humans are the cause»... carbon sequestration in soil is important for mitigating global
climate change» (4a) No position Does not address or mention the cause of global warming (4b) Uncertain Expresses position that human's role
on recent global warming is uncertain / undefined «While the extent of human -
induced global warming is inconclusive...» (5) Implicit rejection Implies humans have had a minimal impact
on global warming without saying so explicitly E.g., proposing a natural mechanism is the main cause of global warming»... anywhere from a major portion to all of the warming of the 20th century could plausibly result from natural causes according to these results» (6) Explicit rejection without quantification Explicitly minimizes or rejects that humans are causing global warming»... the global temperature record provides little support for the catastrophic view of the greenhouse
effect» (7) Explicit rejection with quantification Explicitly states that humans are causing less than half of global warming «The human contribution to the CO2 content in the atmosphere and the increase in temperature is negligible in comparison with other sources of carbon dioxide emission»»
According to the NCAR / UCAR press release
on the subject, the variations in warming and cooling in the 30 simulations illustrate the far - reaching
effects of natural variability superimposed
on human -
induced climate change.
Also, the analysis does not consider possible future
climate -
induced changes in storm or cyclone activity and resulting
effects on flood levels.
The most obvious reading of the IPCC's new version is that natural variability and
climate change might reduce average annual yields by up to 50 %, but
changes induced by two
effects on yields from bad years are not the same as
changes induced by one
effect on yields averaged for both good and bad years.
Melbourne About Blog John Englart write
on the
effects of human
induced climate change, sea level rise, ocean acidification, biodiversity loss, environmental and social impacts of global warming, and
climate protests.