Not exact matches
«A full reading
of Bernstein's email reveals an
important point ---- his assertion that, in the 1980s, we never denied the possible role
of human activity as a
cause for
climate change, and he further makes clear that, at that point in time, there was a great deal
of uncertainty and lack
of understanding
of climate change, even among leading scientists and experts,» said Keil, adding that today, Exxon «believes the risk
of climate change is clear, and warrants action.»
The BBC team used clever analogies and appealing graphics to discuss three key numbers that help clarify
important questions about
climate change: 0.85 degrees Celsius — how much the Earth has warmed since the 1880s; 95 % — how sure scientists are that human activity is the major
cause of Earth's recent warming; and one trillion tons — the best estimate
of the amount
of carbon that can be burned before risking dangerous
climate change.
Understanding these unique areas is
important because there are many examples
of naturally occurring hybrid zones, and new hybrid zones will form in the future as
climate change and human impacts
cause species distributions to shift and come into contact.
Dr Sue Ward, the Senior Research Associate for the project at Lancaster University, said: «Peat is one
of the earth's most
important stores
of carbon, but one
of the most vulnerable to
changes in
climate and
changes in vegetation
caused by both
climate and land management.
«This finding,» says Zhang, «provides
important insights into patterns
of oceanic environmental
change and their underlying
causes, which were ultimately linked to intense
climate warming during the Early Triassic.»
The findings are
important in the context
of human -
caused climate change, which is expected to increase nitrogen, and potentially nitrate, levels in tundra soil.
For example, the criticisms
of James Hansen's 1988 global warming projections never go beyond «he was wrong,» when in reality it's
important to evaluate what
caused the discrepancy between his projections and actual
climate changes, and what we can learn from this.
Now the Robert Rauschenberg Foundation, which he set up to provide support for
causes that were
important to him, is joining forces with two other like - minded organizations to present a series
of exhibitions, panel discussions and performances that will explore
climate change.
Although the direct heat increase is not enough to
cause much
climate change, the indirect influence
of solar activity on cloud cover, wind and rain patterns may be large enough to have an
important impact.
When you add up that there is more methane being emitted than E.P.A. has estimated, that methane is responsible for up to half
of all the greenhouse gas emissions for the entire US, and that each unit
of methane emitted is far more
important in
causing global
climate change over the critical few decades ahead, it should be clear that bridge - fuel argument just doesn't hold up.
That some economists took some time to list them is great, but the implication behind Lomborg's «list» is that these are more
important than man - made
climate change (Lomborg, BTW, says man is
causing climate change and that CO2 emissions are behind a lot
of it).
Rather than focussing on the
important but inherently incremental developments in the science behind the issue, the media would do us all a favor by maintaining a consistent message regarding the underlying issue (i.e. human action is
causing climate change, and
climate change has the potential to do great harm to our way
of life) and focus on how ordinary people can take steps in their own lives to help address the problem in ways that don't require inordinate sacrifice.
It's also
important to remember that clarifying the
causes and consequences
of the last century's
climate changes is just a small part
of the overall picture illuminating rising risks from the unrelenting buildup
of greenhouse gases.
It's
important to remember that SRM technologies bring risks
of their own and do not address rising greenhouse gas emissions, which are the root
cause of both
climate change and ocean acidification.
University
of Florida researcher Edward Schuur says he doesn't expect permafrost greenhouse gas emission to trump anthropogenic (human -
caused) greenhouse gas emissions anytime soon, however they could become «an
important amplifier
of climate change.»
By leaving out very
important components
of the
climate system they increase the likelihood
of a human signal being the
cause of change.
But merely enumerating the strength
of consensus around the fact that humans
cause climate change is largely irrelevant to the more
important business
of deciding what to do about it.
Hulme also suggested that, in reference to a paper by John Cook, «merely enumerating the strength
of consensus around the fact that humans
cause climate change is largely irrelevant to the more
important business
of deciding what to do about it.»
Changes in atmospheric composition from human activities are the main
cause of anthropogenic
climate change by enhancing the greenhouse effect, although with
important regional effects from aerosol particulates (IPCC 2007).
Second, cumulative emissions are particularly
important, because it is the accumulated stock
of GHGs in the atmosphere that
cause climate change.
Heartland has made
important contributions to the scientific debate over the
causes and consequences
of climate change.
By selectively leaving out
important components
of the
climate system, likelihood
of a human signal being the
cause of change is guaranteed.
The debate over the
causes and consequences
of climate change is one
of the world's most
important discussions.
«Most scientists now regard anthropogenic (human -
caused) global
climate change to be the most
important environmental issue
of our times.»
Hypothesis 2b: Although the natural
causes of climate variations and
changes are undoubtedly
important, the human influences are significant and are dominated by the emis - sions into the atmosphere
of greenhouse gases, the most
important of which is CO2.
... incomplete and misleading because it 1) omits any mention
of several
of the most
important aspects
of the potential relationships between hurricanes and global warming, including rainfall, sea level, and storm surge; 2) leaves the impression that there is no significant connection between recent
climate change caused by human activities and hurricane characteristics and impacts; and 3) does not take full account
of the significance
of recently identified trends and variations in tropical storms in
causing impacts as compared to increasing societal vulnerability.
It's particularly
important to account for all potential health benefits realized thanks to implementation
of a federal regulation aimed at
climate change mitigation since health co-benefits make up the majority share
of near - term economic benefits
caused by carbon pollution reduction.
Hypothesis 2a: Although the natural
causes of climate variations and
changes are undoubtedly
important, the human influ - ences are significant and involve a diverse range
of first - order
climate forcings, includ - ing, but not limited to, the human input
of carbon dioxide (CO2).
For example, the criticisms
of James Hansen's 1988 global warming projections never go beyond «he was wrong,» when in reality it's
important to evaluate what
caused the discrepancy between his projections and actual
climate changes, and what we can learn from this.
Before discussing tornadoes, it is
important to note that it is scientifically uncontroversial to conclude that
climate change is
causing more violent weather particularly in the form
of: (a) more damaging thunder storms, (b) the kind
of devastating flooding we have seen this year in Australia, Pakistan, Brazil, Columbia, Venezuela, along the Mississippi and the Tennessee valleys, and (c) more severe droughts such as those experienced this year in China, Brazil, and Texas.
The claim that 2014 was the warmest on record was politically
important for proponents
of the Intergovernmental Panel on
Climate Change (IPCC) story that human CO2 was
causing global warming.
Climate change - driven impacts are one
of many
important causes of poverty.
This
important new book lays bare and refutes the claim that there is a «scientific consensus» on the
causes and consequences
of climate change... [I] t's a breath
of fresh air that this book has been published to coincide with the Kabuki theatre happening right now in Paris at COP - 21.
«That's
important for understanding
causes of megadroughts, and it's
important for
climate modelers to test hypotheses
of climate forcing and
change.»
Only 12 %
of U.S. wildfires are ignited by natural
causes, but these account for 52 %
of the acres burned [10], so even a small
climate change in lightning flash rate has
important consequences.
Only 12 %
of U.S. wildfires are ignited by natural
causes, but these account for 52 %
of the acres burned, so even a small
climate change in lightning may have
important consequences.
Fuel combustion — fossil fuel combustion in high - income and middle - income countries» is a key driver
of pollution and that «coal is the world's most polluting fossil fuel, and coal combustion is an
important cause of both pollution and
climate change.»
We not only agree, but have dozens
of examples
of how great American bird conservation projects make considerable, sometimes unexpected contributions to other
important causes including amphibian conservation, human health, food safety,
climate change, water conservation, and home energy savings.
On the basis
of current evidence about the observed impacts
of climate change on environmental conditions,
climate change will be an increasingly
important cause of human insecurity globally in the future.
While you acknowledged that the
climate is
changing and that humans are having an impact on it, it is critically
important that you understand that emissions
of carbon dioxide and other greenhouse gases are the primary
cause.
Important current examples
of issues for which a strong scientific consensus exists, include human -
caused climate change (Anderegg et al 2010, Cook et al 2016), and the safety
of the MMR vaccine (Taylor et al 1999, DeStefano and Thompson 2004).
Within that group they determined how many scientists really did agree with the most
important IPCC conclusion, namely that humans are
causing significant
climate change — in other words the key parts
of WG I.
According to the proposed rule,
climate change is the most
important threat to these key ocean species, with more than 97 percent
of reefs predicted to experience severe thermal stress, which can
cause massive bleaching and mortality, by 2050.
«Exxon's goal
of putting off as long as possible any investigation into the critically
important question
of whether Exxon broke the law and deceived consumers and investors about the role
of its products in
causing climate change.»
Efficiency is very
important in the case
of fossil fuel power stations because fossil fuels are a finite resource — once we use them they are gone — and when burned they produce carbon dioxide and other substances that kill people and
cause climate change and ocean acidification; so it is very
important to get as much electricity as we possibly can per tonne
of fossil fuel.
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»»
There is no consensus on some
of the most
important issues involved in assessing human -
caused climate change, including atmospheric sensitivity, the most
important factor.
But the lack
of statistically significant results and, more
important, the absence
of evidence pointing to a smoking gun — a physical mechanism in the
climate system that ties Arctic
changes to extreme events — has left many top
climate researchers unconvinced that rapid Arctic warming is a major player in
causing extreme weather events outside
of the Arctic itself.
We will know what
causes changes in cloud behavior and the effects
of those
changes as soon as we have the will to invest in the instruments necessary to give us reliable and detailed information about what is
important for
climate in those
changes.
Hans Bruyninckx, the director
of the agency, said that
climate change is an «increasingly
important factor» in the damages
caused by flooding, but part
of the problem can also be attributed to a denser population living in flood - prone areas.