The bottom line, according to a group of experts not involved in any of these studies: Scientists don't know much about how sunlight interacts with our planet, and until they understand it, they can't accurately predict any possible effects
of human activity on climate change.
A world - renowned scholar, he focused on the impact
of human activities on climate change in his teaching and research, and his contributions extended well beyond our campus.
Are you saying that the aggregate and cumulative external effects
of human activities on climate change are negligible for the relevant time horizon (ie until life on earth stops for reasons not under the control of humans) or are you saying you disagree with all or some of the quantifications methods available at present?
Not exact matches
Trump's stance
on the environment contradicts thousands
of scientists and decades
of research, which has linked many observable
changes in
climate, including rising air and ocean temperatures, shrinking glaciers, and widespread melting
of snow and ice, to an increase in greenhouse gas emissions from
human activities.
«I do not believe that
human activity is causing these dramatic
changes to our
climate the way these scientists are portraying it,» the first term senator said Sunday
on ABC «This Week,» after being asked by ABC News» Jon Karl whether
humans were contributing to the heating up
of the planet.
DELHI - In an effort to slow down the impacts
of accelerated
climate change due to human activity, five area women, Janet Tweed, Kathy Mario, Lisa Robinson, Bonnie Seegmiller and Irene Berkowitz, combined their efforts to facilitate a rally to show support for the National People's Climate March in Washington, D.C., on April 29 at Courthouse Square in
climate change due to
human activity, five area women, Janet Tweed, Kathy Mario, Lisa Robinson, Bonnie Seegmiller and Irene Berkowitz, combined their efforts to facilitate a rally to show support for the National People's
Climate March in Washington, D.C., on April 29 at Courthouse Square in
Climate March in Washington, D.C.,
on April 29 at Courthouse Square in Delhi.
They agreed with the Intergovernmental Panel
on Climate Change that
human activity had caused most
of Earth's warming over the second half
of the 20th century.
Many agree that his research
on ice caps across the world was some
of the first, most convincing evidence that current
climate change is due to
human activity.
James Balog, who founded Extreme Ice Survey that uses photography and videography to document the impact
of climate change on glaciers — work that was the basis
of his 2012 documentary «Chasing Ice» — said his work shows how
human activities are transforming Earth's systems.
While the effects
of human activity on the seal population can be detrimental — for example through a high rate
of fishing bycatch mortality as observed
on Lake Saimaa — a novel conservation method can help the seal population to cope with
climate change.
The study, led by Dr Julie Jones from the University
of Sheffield's Department
of Geography, has revealed that limited data
on Antarctica's
climate is making it difficult for researchers to disentangle
changes caused by
human activity from natural
climate fluctuations.
Even the seemingly pristine Galápagos Islands, one
of the most biologically rich and diverse ecosystems
on the planet, face increasing threats as a result
of climate change, water pollution, invasive plants and animals and other challenges related to
human activities.
The first, Schatz's amendment, cites scientific bodies like the National Research Council and Intergovernmental Panel
on Climate Change in asking whether it's the «sense of Congress» that «climate change is real» and that «human activity significantly contributes to climate change.
Climate Change in asking whether it's the «sense of Congress» that «climate change is real» and that «human activity significantly contributes to climate change.&
Change in asking whether it's the «sense
of Congress» that «
climate change is real» and that «human activity significantly contributes to climate change.
climate change is real» and that «human activity significantly contributes to climate change.&
change is real» and that «
human activity significantly contributes to
climate change.
climate change.&
change.»
Our homes and offices account for more than one third
of all greenhouse gases emitted by
human activity — the bulk
of it for heating in winter and air - conditioning in summer, according to the U.N. Intergovernmental Panel
on Climate Change (IPCC).
In 1996, when
climate research was more certain about the link between fossil fuel combustion and
climate change than during the time
of Shaw's memo, Exxon's new chairman and chief executive Lee Raymond said in a speech in Detroit: «Currently, the scientific evidence is inconclusive as to whether
human activities are having a significant effect
on the global
climate.»
Today we understand the impact
of human activities on global mean temperature very well; however, high - impact extreme weather events are where the socio - economic impacts
of a
changing climate manifest itself and where our understanding is more in its infancy but nevertheless developing at pace.
The Division conducts research
on the longâ $ term impact
of human activities on climate and natural resources using a research strategy that starts with measurements and carries that information into models, with a goal
of improving the nation's ability to predict
climate change.
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.
The Observatory will also set out to explain the current drivers
of climate change arising from
human activities (including industry and agriculture), and how our future actions will depend
on our capacity to understand the pace and direction
of change.
Climatologists reporting for the UN Intergovernmental Panel
on Climate Change (IPCC) say we are seeing global warming caused by
human activities and there are growing fears
of feedbacks that will accelerate this warming.
The effects
of human activity have long been cited as a primary cause
of global
climate change, but new research from NASA has revealed that our use
of technology also appears to be having an impact not just
on the planet, but
on Earth's near - space environment as well.
Perceptions
of where the scientific community stands
on climate change have fluctuated from a low
of 44 % in 2010 who said that scientists agree about
human activity as the main cause
of warming temperatures to a high
of 57 % saying this today.19
During his confirmation hearing, the former Navy pilot wouldn't agree that
human activity is the primary cause
of climate change, an unusual position when NASA provides some
of the world's most comprehensive data
on climate change.
Andrea Bowers is an artist, educator, and activist whose artwork focuses
on activists and activist
activities dealing with
human rights issues and the environment, particularly women's rights, the rights
of migrating peoples, and
climate change.
According to a recent article in Eos (Doran and Zimmermann, «Examining the Scientific consensus
on Climate Change `, Volume 90, Number 3, 2009; p. 22 - 23 — only available for AGU members — update: a public link to the article is here), about 58 %
of the general public in the US thinks that
human activity is a significant contributing factor in
changing the mean global temperature, as opposed to 97 %
of specialists surveyed.
Please note the last sentence
of 71 pages from Exhibit 5: presentation
on «Understanding how carbon dioxide emissions from
human activity contribute to global
climate change»).
Global
Climate Change and
Human Activity From RealClimate, a «simpler» explanation on how we know «that not only part of the atmospheric CO2 increase is due to human activities, but all of it.&r
Human Activity From RealClimate, a «simpler» explanation
on how we know «that not only part
of the atmospheric CO2 increase is due to
human activities, but all of it.&r
human activities, but all
of it.»
I have also worked closely with other social scientists at NCAR [see for instance a book I put together for the Global
Change Instruction Program: Effects
of Changing Climate on Weather and
Human Activities].
On Monday, I asked him, in essence, if the shape of the 20th - century temperature curve were to shift much as a result of some of the issues that have come up in the disclosed e-mail messages and files, would that erode confidence in the keystone climate question (the high confidence expressed by the Intergovernmental Panel on Climate Change in 2007 that most warming since 1950 is driven by human activities
On Monday, I asked him, in essence, if the shape
of the 20th - century temperature curve were to shift much as a result
of some
of the issues that have come up in the disclosed e-mail messages and files, would that erode confidence in the keystone
climate question (the high confidence expressed by the Intergovernmental Panel on Climate Change in 2007 that most warming since 1950 is driven by human activ
climate question (the high confidence expressed by the Intergovernmental Panel
on Climate Change in 2007 that most warming since 1950 is driven by human activities
on Climate Change in 2007 that most warming since 1950 is driven by human activ
Climate Change in 2007 that most warming since 1950 is driven by
human activities)?
In the most recent Third Assessment Report (2001), IPCC wrote «There is new and stronger evidence that most
of the warming observed over the last 50 years is attributable to
human activities» This section is trying to cast doubt
on the IPCC report, one
of the most comprehensive
climate change studies.
Global
climate change risks are high to very high with global mean temperature increase
of 4 °C or more above preindustrial levels in all reasons for concern (Assessment Box SPM.1), and include severe and widespread impacts
on unique and threatened systems, substantial species extinction, large risks to global and regional food security, and the combination
of high temperature and humidity compromising normal
human activities, including growing food or working outdoors in some areas for parts
of the year (high confidence).
pg xiii This Policymakers Summary aims to bring out those elements
of the main report which have the greatest relevance to policy formulation, in answering the following questions • What factors determine global
climate 7 • What are the greenhouse gases, and how and why are they increasing 9 • Which gases are the most important 9 • How much do we expect the
climate to
change 9 • How much confidence do we have in our predictions 9 • Will the
climate of the future be very different 9 • Have
human activities already begun to
change global
climate 9 How much will sea level rise 9 • What will be the effects
on ecosystems 9 • What should be done to reduce uncertainties, and how long will this take 9 This report is intended to respond to the practical needs
of the policymaker.
Alternatively, we could describe
climate change as one aspect
of a system
of human growth (in population, energy use, resource use, economic
activity, etc) and the many ways in which that growth is constrained
on a finite planet.
CAGW or Catastrophic Anthropogenic Global Warming is the acronym used (mostly by those that don't support taking immediate action
on climate change) for the theory (or collection
of hypotheses) that attribute most
of the observed modern warming to
human activities and warn that continuing similar
activities (mostly emitting CO2) could result in warming that is dangerous to both civilization and a number
of ecosystems.
the ACS has
on its website a
Climate Science Tool Kit (http://www.acs.org/climatescience) that provides a broader, in - depth view of the underlying science of how human activity can bring about climate
Climate Science Tool Kit (http://www.acs.org/climatescience) that provides a broader, in - depth view
of the underlying science
of how
human activity can bring about
climate climate change.
In the light
of the scientific consensus
on climate change, as well as «mountains»
of good scientific evidence related to other potentially pernicious effects imposed
on the Earth by the over consumption, overproduction and overpopulation
activities of the
human species in our time, it could be a pointless distraction for us to be imagining a world for our grandchildren.
The British university has contended that the messages were illegally obtained by a hacker, who posted them
on Web sites
of groups critical
of the current scientific consensus that
human activity has caused dangerous
changes to the global
climate.
The United Nations Framework Convention
on Climate Change (UNFCCC), in its Article 1, defines climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&
Climate Change (UNFCCC), in its Article 1, defines climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&r
Change (UNFCCC), in its Article 1, defines
climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&
climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&r
change as: «a
change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&r
change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&
climate which is attributed directly or indirectly to
human activity that alters the composition
of the global atmosphere and which is in addition to natural
climate variability observed over comparable time periods&
climate variability observed over comparable time periods».
Climate scientists, on the other hand, have thousands of papers of undeniable evidence that climate change from human activity is happening and it's a very big p
Climate scientists,
on the other hand, have thousands
of papers
of undeniable evidence that
climate change from human activity is happening and it's a very big p
climate change from
human activity is happening and it's a very big problem.
Ultimately, the Intergovernmental Panel
on Climate Change (IPCC) concluded that most
of the warming since 1951 has been due to
human activities.
Current requirements for that degree show that he would have taken exactly one chemistry course and NO biology / climatology / environmental science courses, which leaves him markedly unqualified to postulate
on «
climate change», particularly the idea that «
climate change» is caused by the
activities of human beings.
Gallup polls show that it's now issue number 14 out
of 15, it's no longer issue, we've really won
on that issue,» Inhofe boasted after voting against an unsuccessful amendment stating the fact that
human activities affect
climate change.
On this basis, it is impossible to draw a conclusion that there is a level
of CO2 that we are in danger
of reaching (from
human activity) that would be detrimental to life (toxic) OTHER THAN through rapid
climate or environmental
changes.
What's lost in a lot
of the discussion about
human - caused
climate change is not that the sum
of human activities is leading to some warming
of the earth's temperature, but that the observed rate
of warming (both at the earth's surface and throughout the lower atmosphere) is considerably less than has been anticipated by the collection
of climate models upon whose projections
climate alarm (i.e., justification for strict restrictions
on the use
of fossil fuels) is built.
Climate -
change impacts
on this sector, however, need to be viewed together with other
human activities, including impacts that may arise from governance
of fresh and marine waters (AMCEN / UNEP, 2002).
On the surface, Moore is everything deniers are looking for: a former co-founder
of Greenpeace who has switched teams, proclaiming loudly that
human activity is not the dominant cause
of climate change.
While recent headlines about the woes
of U.N. - led efforts to assemble a comprehensive picture
of the science have caused gleeful headlines
on The Drudge Report and other skeptical media outlets, the vast weight
of the evidence — from melting glaciers to warming oceans to satellite temperature readings, and much more — still points to a
changing climate caused by
human activity.
All, however, have been vocal before Congress,
on broadcast news or
on the Internet in arguing that
human activity is not the primarily driver
of climate change.
Based
on a series
of columns written for the National Post (a newspaper that gives a tremendous amount
of space to
climate change deniers), the book purported to highlight research that dissented from the scientific consensus that
climate change, caused by
human activity, is a severe threat to the planet.
She also said the UN's Intergovernmental Panel
on Climate Change is overly confident in attributing most
of the warming to
human activity.