Sentences with phrase «human effects on»

According to Steffen, there are two approaches to modelling human effects on climate — either include anthropogenic factors such as greenhouse gases, aerosols and land use in conventional climate models, or use an economics approach.
That's close to the 97 % in Cook's «survey» that found agreement to an equally vague statement of human effects on climate change.
Just to be clear, I'm not against studying climate change, or funding research into technology that can mitigate human effects on the environment.
It follows that «this context», the context of Dr Curry's enquiry here, is * not * human effects on global temperature.
In any case, one decade is not long enough to say anything about human effects on climate; as one forthcoming paper lays out, 17 years is required.»
Santer et al. argue that «Our results show that temperature records of at least 17 years in length are required for identifying human effects on global - mean tropospheric temperature.»
In the context of Santer et al.'s conclusions regarding «Trends > 17 yrs are required for identifying human effects on tropospheric temp.»
Since the late 1970s, it has been recognized that the identification of human effects on climate is inherently a signal - to - noise (S / N) problem [Hasselmann, 1979; Madden and Ramanathan, 1980; Wigley and Jones, 1981; Wigley and Raper, 1990; Allen et al., 1994; Santer et al., 1994, 1995].
The clear message from our signal - to - noise analysis is that multi-decadal records are required for identifying human effects on tropospheric temperature.
The reduction in nighttime cooling that leads to this bias may indeed be the result of human interference in the climate system (i.e., local effects of increasing greenhouse gases or human effects on cloud cover), but through a causal mechanism different than that typically assumed.
I'm betting that, whatever the answer is, someone will eventually write a paper stating that the answer +1 will be the [«Trends required for identifying human effects on tropospheric temp.»].
Ben Santer in a 2011 paper «Our results show that temperature records of at least 17 years in length are required for identifying human effects on global - mean tropospheric temperature.»
Look at the pile of junk that you are calling «evidence» for the existence of human effects on the climate in the last 16 years.
Putting up «sea level rise since 1961» as an argument either for or against human effects on the climate is a joke.
Furthermore, there is no consensus within the Antarctic research community if there have been any human effects on Antarctica's ice balance.
The null needs to be tightly confined to co2 - there are obviously other human effects on climate (land use being the first to spring to mind), but they just muddy the issue.
Almost immediately, and predictably, the findings were criticized by both sides in the debate over what to do, or not do, about human effects on the climate.
The abstract of that article is particularly terse on Nature.com: Amazonian deforestation rates are used to determine human effects on the global carbon cycle and to measure Brazil's progress in curbing forest impoverishment,,.
Amazonian deforestation rates are used to determine human effects on the global carbon cycle (1 - 3) and to measure Brazil's progress in curbing forest impoverishment (1,4,5).
The bottom line is that the identification of human effects on climate is a signal - to - noise problem.
Projections of future fire must therefore not only account for responses of different fuel systems to climatic change but the wider range of ecological and human effects on interactions between fire and vegetation.»
The first organized public effort to limit human effects on the biosphere of which I am aware came from Jacques Yves Costeau in the founding of the Costeau Society in 1974.
«Our results show that temperature records of at least 17 years in length are required for identifying human effects on global - mean tropospheric temperature.»
Evelyn Rydz's Floating Artifacts, at the Aidekman Arts Center, is presented as a part of SMFA's larger project, The Ocean After Nature, which examines the human effects on the ocean.
«No limits to human effects on clouds.»
Highly motivated people openly cast doubt on well - established evidence — the theory of evolution, the human effects on climate change, the value of vaccines and other findings that have achieved an overwhelming consensus in the scientific community.
A new study titled Body size downgrading of mammals over the late Quaternary, released Friday in the journal Science, is the first to quantitatively show that human effects on mammal body size predates their migration out of Africa and that size selective extinction is a hallmark of human activities and not the norm in mammal evolution.
Human effects on the climate notwithstanding, the cycle will continue to turn, the hothouse period will some day come to an end — and the ice sheets will descend again.
In the time since the 2007 version of this report, the human effect on the climate has grown more than 40 percent stronger, thanks to continued emissions of greenhouse gases and more precision in measurements, with carbon dioxide leading the charge.
, but rather «are we sure that the human effect on climate over the last 8,000 years has helped to prevent the occurrence of another glaciation?»
«The human effect on the region through climate change is clear and it is strengthening,» the scientists wrote.
The student's project connected engineering and design principles surrounding oil extraction to the team's theme of «humans effect on natural resources.»
The key, he says, is to avoid distance and to make painting human: «The moment you take something that has a human effect on you, something you can't describe, the whole thing transforms from a topic to something that is about yourself.»
(«Anthropocene» is the proposed name for our current geological era, characterized by the unprecedented human effect on the global environment.)
For my two cents the two null's would be 1 - There is no human effect on climate wrt C02 2 - There is no significant human effect on climate wrt C02.
There's just no way of explaining what we've actually observed without invoking a strong human effect on climate.
After the 1995 IPCC report claimed that the «balance of evidence» supported a human effect on the climate, the next year's COP in Geneva marked a turning point on the way to Kyoto.
Second, recent weather and temperature anomalies have not been unusual and are not evidence of a human effect on climate.
Much of what you are calling «evidence» that humans have a hand in the warming, whether provided by yourself or the IPCC or the Mail and Guardian, is merely evidence of warming and says nothing about any human effect on the climate.
If you truly believe that increasing surface temperatures 1875 - 1900 are evidence for a human effect on the climate in the last 16 years, as you clearly state above, you desperately need to reconsider your definition of «evidence».
Now I haven't asked all of them, but I'm pretty confident that no climate scientist has ever used a picture of a dolphin — even a cute, smiling one — as «evidence of human effect on climate.»
Non-scientist political appointees in the Bush White House, most notably CEQ Chief of Staff Philip Cooney, made hundreds of edits to the Plan, each of which was designed either «to manufacture or elevate existing scientific uncertainties» or «to delete or downplay evidence of the human effect on global warming,» as reported in our recent CSPW White Paper.
These are not evidence of human effect on climate.»
Why else would the IPCC bring out a report in 2007 saying the human effect on warming is becoming increasingly apparent, when there's been no warming since 1998?
What the report says about drought, dust storms, and climate change: The human effect on droughts is complicated.
Effectively asking scientists involved with the IPCC to provide impartial information that would cast doubt on the human effect on the climate is asking them to take the KoolAid.
Whereas the reports of the United Nations» Intergovernmental Panel on Climate Change (IPCC) warn of a dangerous human effect on climate, NIPCC concludes the human effect is likely to be small relative to natural variability, and whatever small warming is likely to occur will produce benefits as well as costs.
«What has happened, of course, is that people have cut down trees and created pasture, so you actually have to artificially come in and cut down trees and turn it into pasture, and you have to account for this human effect on the climate system,» Weaver said.
Willie Soon's climate change research has been consistently cited by parties seeking to doubt the human effect on climate change.
I think you can't pick a better date than 2001, when the IPCC officially announced that there was a «discernible» human effect on climate.
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