«If we were in a court of law, with
human influence on the climate system in the dock, the verdict for Australia's 2013 heat wave would be guilty as charged.
Not exact matches
But the most recent report from the Intergovernmental Panel
on Climate Change — the evidence of 600 climate researchers in 32 countries reporting changes to Earth's atmosphere, ice and seas — in 2013 stated «human influence on the climate system is clear.
Climate Change — the evidence of 600
climate researchers in 32 countries reporting changes to Earth's atmosphere, ice and seas — in 2013 stated «human influence on the climate system is clear.
climate researchers
in 32 countries reporting changes to Earth's atmosphere, ice and seas —
in 2013 stated «
human influence on the
climate system is clear.
climate system is clear.»
«
In the case of California's drought, the
climate models do not indicate that such extremely low precipitation is an expected consequence of
human influence on the
climate system,» said
In a November report, the panel observed that «
human influence on the
climate system is clear and growing, with impacts observed
on all continents.»
While there is nothing physically significant about 400ppm
in itself — it does not reflect any actual threshold
in the
climate system — it reminds us of the increasing extent of
human influence on the
climate.
Walking through the frozen - food section, I was reminded just how far this country is from being engaged
in the «energy quest» that'd be needed not only to wean ourselves from oil but also to limit the
human influence on the planet's
climate system.
But Obama faces a reality that many of these groups seem slow to recognize: While the 20th - century toolkit preferred by traditional environmentalists — litigation, regulation and legislation — remains vital to limiting domestic pollution risks such as the oil gusher, it is a bad fit for addressing the building
human influence on the
climate system, which is driven now mainly by a surge
in emissions mostly outside United States borders
in countries aiming to propel their climb out of poverty
on the same fossil fuels that generated much of our affluence.
Did the disclosed information
in some substantial way undercut the broad body of evidence pointing to a rising
human influence on the
climate system?
Realclimate, which was launched largely defensively
in 2004 (you can read an explanatory note
in, you guessed it, the East Anglia e-mails) has matured into a valuable resource for anyone trying to gauge what science has, and has not, revealed about a
human influence on the
climate system.
For months, the stasist blogosphere has been aflame with «Gates of various kinds — attempts to spin one or two errors or overstatements
on particular issues, along with various comments
in the East Anglia e-mail messages, into the unraveling of the many lines of science pointing to a rising, and risky,
human influence on the
climate system.
From Cape Cod's coast to South Asia's Sunderbans, communities are grappling with an unnerving consequence of trying to build a «good» Anthropocene, the term increasingly applied to Earth's age of
humans,
in which we've become a powerful
influence on everything from the
climate system to evolution.
When I'm forced to compress it down to just those two words I'm talking about the
human influence on the
climate system through the buildup of greenhouse gases
in the atmosphere.
As part of the trend
in higher education toward moving more course offerings onto the Web, the University of Chicago has launched Open
Climate 101, an online version of a popular course led by David Archer that explores for non-science majors the body of research pointing to a rising human influence on the climate
Climate 101, an online version of a popular course led by David Archer that explores for non-science majors the body of research pointing to a rising
human influence on the
climate climate system.
-- He has not given a substantial speech focused
on the responsibility of the world's greatest emitter of greenhouse gases to face up to the long - term risks posed by the rising
human influence on the
climate system and pursue the opportunities that lie
in a sustained «energy quest.»
It may take another president, or two, before America's energy quest gets into the necessary gear, perhaps driven by a confluence of a new spike
in oil prices and rising anger among veterans wounded protecting fuel convoys
in Afghanistan and building evidence pointing to a growing, and harmful,
human influence on the
climate system.
The take - home message, directly
in sync with the core findings of the last two assessments from the Intergovernmental Panel
on Climate Change, can be distilled to a fairly straightforward statement: Rising concentrations of carbon dioxide will result
in long - lasting warming that will progressively produce more harmful impacts
on conditions and
systems that
influence human wellbeing.
And there are plenty of important questions to resolve about the
climate of the Holocene — this comfy warm interval
humans have enjoyed since the end of the last ice age — before the
human influence on the
system built
in recent decades.
When you look behind dueling posts and columns, it's clear that the building and long - lasting
influence of
humans on the
climate system is progressively tipping the odds toward outcomes that can be bad for agriculture
in many struggling places.
In 2002, the National Academy of Sciences published «Abrupt
Climate Change: Inevitable Surprises,» a valuable report examining whether and how the building human influence on the climate system might lead to disruptive
Climate Change: Inevitable Surprises,» a valuable report examining whether and how the building
human influence on the
climate system might lead to disruptive
climate system might lead to disruptive jolts.
On the question of hurricanes, the theoretical arguments that more energy and water vapor
in the atmosphere should lead to stronger storms are really sound (after all, storm intensity increases going from pole toward equator), but determining precisely how
human influences (so including GHGs [greenhouse gases] and aerosols, and land cover change) should be changing hurricanes
in a
system where there are natural external (solar and volcanoes) and internal (e.g., ENSO, NAO [El Nino - Southern Oscillation, North Atlantic Oscillation]-RRB-
influences is quite problematic — our
climate models are just not good enough yet to carry out the types of sensitivity tests that have been done using limited area hurricane models run for relatively short times.
Final Text: The headline message to this section states that
human influence on the
climate system is clear as it is evident from the increasing GHG concentrations
in the atmosphere, positive radiative forcing, observed warming, and understanding of the
climate system.
One important determinant of how much
climate will change is the effect of so - called «feedbacks»
in the
climate system, which can either dampen or amplify the initial effect of
human influences on temperature.
To quote again from Rial et al 2004 — it «is imperative that the Earth's
climate system research community embraces this nonlinear paradigm if we are to move forward
in the assessment of the
human influence on climate.»
«The Earth's
climate system is highly nonlinear: inputs and outputs are not proportional, change is often episodic and abrupt, rather than slow and gradual,... It is imperative that the Earth's
climate system research community embraces this nonlinear paradigm if we are to move forward
in the assessment of the
human influence on climate..»
«The Earth's
climate system is highly nonlinear: inputs and outputs are not proportional, change is often episodic and abrupt, rather than slow and gradual, and multiple equilibria are the norm... there is a relatively poor understanding of the different types of nonlinearities, how they manifest under various conditions, and whether they reflect a
climate system driven by astronomical forcings, by internal feedbacks, or by a combination of both... [We] suggest a robust alternative to prediction that is based
on using integrated assessments within the framework of vulnerability studies... It is imperative that the Earth's
climate system research community embraces this nonlinear paradigm if we are to move forward
in the assessment of the
human influence on climate.»
In contrast, the purpose of albedo modification technologies is to introduce a new form of
human influence on the
climate system by altering the amount of sunlight absorbed by the Earth.
Instead, carbon removal aims to reduce historical
human influence on the
climate system by decreasing the amount of excess carbon dioxide
in the atmosphere — essentially reversing the
influence of anthropogenic greenhouse gas (GHG) emissions.
In this regard, carbon removal approaches share a common purpose with conventional
climate mitigation technologies, which also seek to reduce
human influence on the
climate system (by reducing future anthropogenic GHG emissions).
I could begin a story about the growing
human influence on earth's
climate system with a recap of the effects of an unabated rise
in concentrations of heat - trapping carbon dioxide and other greenhouse gases.
The summary related aviation's role relative to all
human influence on the
climate system: «The best estimate of the radiative forcing
in 1992 by aircraft is 0.05 W m — 2 or about 3.5 % of the total radiative forcing by all anthropogenic activities.»
Tom Harris wrote that UN Secretary - General Ban Ki - moon «exemplified the childish and deceptive nature of the UN's approach to
climate change when [Ban Ki - moon] told reporters at this week's launch of the Synthesis Report
in Copenhagen: «
Human influence on the
climate system is clear - and clearly growing.