[It is helps us to understand what natural forces are currently at work that could be causing changes... But note that some natural forces like the ones that I talked about above work over much longer timescales than the century timescale over which we are making
significant changes in greenhouse gas levels.
Not exact matches
This would mean
significant change to the amount of
greenhouse gas in the atmosphere and would slow down the rate of warming.
In the study published in the journal Nature Climate Change, researchers at the Stockholm Environment Institute write that widely quoted U.S. State Department findings that the oilsands pipeline wouldn't make a significant difference missed a major source of greenhouse gas emission
In the study published
in the journal Nature Climate Change, researchers at the Stockholm Environment Institute write that widely quoted U.S. State Department findings that the oilsands pipeline wouldn't make a significant difference missed a major source of greenhouse gas emission
in the journal Nature Climate
Change, researchers at the Stockholm Environment Institute write that widely quoted U.S. State Department findings that the oilsands pipeline wouldn't make a
significant difference missed a major source of
greenhouse gas emissions.
«This funding and the demonstration project ensure that Ontario will continue to lead
in the development of smart grid technology,» said Bob Leigh, President, Prolucid Technologies Inc. «Utilities globally face
significant challenges to
change the model of power consumption, reducing
greenhouse gases and increasing the efficiency of the grid.
The global energy sector is
in the midst of a
significant transition, driven by new technologies,
changing consumer preferences, and efforts to reduce
greenhouse gas emissions.
How critical is this transformation of the grid to getting the amount of renewables we need to be on track to make
significant cuts
in greenhouse gas emissions, the kind of cuts that we need to forestall or minimize global climate
change?
As time ran out on the latest international climate
change negotiations, an agreement was reached that includes all
significant countries
in the effort to reduce
greenhouse gases.
If renewable energy is going to be a bigger player and have a
significant impact
in cutting the
greenhouse gas emissions from power plants that are driving climate
change, it's going to have to grow quickly.
THE RESULTS Both studies found that
changes in land use related to biofuel production would be a
significant source of
greenhouse gases in the future.
Watch Video David L. Chandler MIT News Office Scientists agree that
changes in land use such as deforestation, and not just
greenhouse gas emissions, can play a
significant role altering the world's climate systems.
Changes in a variety of other factors such as operating procedures, aircraft routing, and load factors can also have
significant impacts on
greenhouse gas emissions per passenger mile.
With the warming already committed
in the climate system plus the additional warming expected from rising concentrations of
greenhouse gases in the atmosphere, the Arctic will experience
significant changes during this century even if
greenhouse gas emissions are stabilized globally at a level lower than today's.
The problem there, as I pointed out a few months ago, is that not all
greenhouse gases contain carbon, and not all carbon - containing pollution plays a
significant role
in climate
change.
There is still a lot of work being done on this, but I wouldn't anticipate much of a
significant change in NAO over 2005 - 2007 since there is a lot of noise and a lot of other influences — not least
greenhouse gases, which with either mechanism, provide an opposing tendency.
«As business leaders, it is our belief that the benefits of strong, early action on climate
change outweigh the costs of not acting... a sufficiently ambitious, international and comprehensive legally - binding United Nations agreement to reduce
greenhouse gas emissions will provide business with the certainty it needs to scale up global investment
in low - carbon technologies... the shift to a low - carbon economy will create
significant business opportunities».
This means that the «pause,» or whatever you want to call it,
in the rise of global surface temperatures is even more
significant than it is generally taken to be, because whatever is the reason behind it, it is not only acting to slow the rise from
greenhouse gas emissions but also the added rise from
changes in aerosol emissions.
In particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to significant evidence that they tend to ignore, that the comparatively small influences of natural changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balanc
In particular, the authors find fault with IPCC's conclusions relating to human activities being the primary cause of recent global warming, claiming, contrary to
significant evidence that they tend to ignore, that the comparatively small influences of natural
changes in solar radiation are dominating the influences of the much larger effects of changes in the atmospheric greenhouse gas concentrations on the global energy balanc
in solar radiation are dominating the influences of the much larger effects of
changes in the atmospheric greenhouse gas concentrations on the global energy balanc
in the atmospheric
greenhouse gas concentrations on the global energy balance.
The deal made by Chinese leader Xi Jinping and President Barack Obama to limit
greenhouse gases from those two nations represents the most
significant action
in the fight against climate
change in years.
Then, as an expert, you cite from an interview the head of an organization created to refute the idea that geologically radical long lived
greenhouse gas concentration level alteration of our atmosphere (said more correctly than the simplistic «climate
change» phrase, it's a mouthful for our twitter age), poses a threat of
significant climatic shift
in response.
One driver of temperatures
in this region is the abundance and variability of ozone, but water vapor, volcanic aerosols, and dynamical
changes such as the Quasi - Biennial Oscillation (QBO) are also
significant; anthropogenic increases
in other
greenhouse gases such as carbon dioxide play a lesser but
significant role
in the lower stratosphere.
Framework Convention on Climate
Change (FCCC): An agreement opened for signature at the «Earth Summit» in Rio de Janeiro, Brazil, on June 4, 1992, which has the goal of stabilizing greenhouse gas concentrations in the atmosphere at a level that would prevent significant anthropogenically forced climate c
Change (FCCC): An agreement opened for signature at the «Earth Summit»
in Rio de Janeiro, Brazil, on June 4, 1992, which has the goal of stabilizing
greenhouse gas concentrations
in the atmosphere at a level that would prevent
significant anthropogenically forced climate
changechange.
Like my post on how many
greenhouse gasses humanity can safely emit and my post on the (absent) long - term future of the fossil fuel industry, it highlights how preventing catastrophic climate
change obliges humanity to keep a
significant proportion of all available fossil fuels
in the ground.
As Yohe sees it, a prudent risk - management strategy dictates
significant cuts
in greenhouse gases and immediate planning to adapt to rising sea levels and other effects of climate
change.
A:
In this draft statement on Earth's Changing Climate, APS «reiterates» its 2007 statement in stating that: the climate is changing, humans are contributing to climate change, and rising concentrations of greenhouse gases pose the risk of significant disruption around the glob
In this draft statement on Earth's
Changing Climate, APS «reiterates» its 2007 statement in stating that: the climate is changing, humans are contributing to climate change, and rising concentrations of greenhouse gases pose the risk of significant disruption around th
Changing Climate, APS «reiterates» its 2007 statement
in stating that: the climate is changing, humans are contributing to climate change, and rising concentrations of greenhouse gases pose the risk of significant disruption around the glob
in stating that: the climate is
changing, humans are contributing to climate change, and rising concentrations of greenhouse gases pose the risk of significant disruption around th
changing, humans are contributing to climate
change, and rising concentrations of
greenhouse gases pose the risk of
significant disruption around the globe.
WASHINGTON, D.C. — A new offshore oil and
gas plan from the U.S. Department of the Interior blocks two drilling leases
in the Arctic, but allows a new lease
in Alaska's Cook Inlet and 10 new leases
in the Gulf of Mexico over the next five years — a step that will worsen climate
change by ensuring
significant greenhouse gas pollution for the next 70 years.
Unless you believe the energy transition is not for real, there would be minimal impact on
greenhouse gasses since new pipelines are not likely to
change oil sands economics enough
in a low price world to spur
significant new investment.
Stabilization of climate to avoid «dangerous anthropogenic interference with the climate system», as called for
in the UN Framework Convention on Climate
Change, will require
significant cutbacks
in greenhouse gas emissions during the 21st century; and
(The fact that they all are is conclusive evidence that there is little or no scope on real planets for
changes in «
greenhouse»
gasses to have
significant temperature effects — even if the process worked just the way the AGW theorists claim!)
Greenhouse gas (GHG) emissions from human activity and livestock are a
significant driver of climate
change, trapping heat
in the earth's atmosphere and triggering global warming.
For example, the paper includes the following: «
greenhouse gas pollution can impose great harms», «significantly increased risks of severe harms», and «A handful of geographic regions may experience short - term benefits from climate
change, such as temporary agricultural gains
in colder regions, but even
in those areas, long - term, catastrophic scenarios would bring
significant harms.»
Analysts say circumstances have
changed that make it easier for the two countries to seriously consider emissions reductions, after a major U.N. climate meeting
in Copenhagen five years ago ended without
significant cuts to
greenhouse gases.
Other factors, including
greenhouse gases, also contributed to the warming and regional factors played a
significant role
in increasing temperatures
in some regions, most notably
changes in ocean currents which led to warmer - than - average sea temperatures
in the North Atlantic.
«Climate science» as it is used by warmists implies adherence to a set of beliefs: (1) Increasing
greenhouse gas concentrations will warm the Earth's surface and atmosphere; (2) Human production of CO2 is producing
significant increases
in CO2 concentration; (3) The rate of rise of temperature
in the 20th and 21st centuries is unprecedented compared to the rates of
change of temperature
in the previous two millennia and this can only be due to rising
greenhouse gas concentrations; (4) The climate of the 19th century was ideal and may be taken as a standard to compare against any current climate; (5) global climate models, while still not perfect, are good enough to indicate that continued use of fossil fuels at projected rates
in the 21st century will cause the CO2 concentration to rise to a high level by 2100 (possibly 700 to 900 ppm); (6) The global average temperature under this condition will rise more than 3 °C from the late 19th century ideal; (7) The negative impact on humanity of such a rise will be enormous; (8) The only alternative to such a disaster is to immediately and sharply reduce CO2 emissions (reducing emissions
in 2050 by 80 % compared to today's rate) and continue further reductions after 2050; (9) Even with such draconian CO2 reductions, the CO2 concentration is likely to reach at least 450 to 500 ppm by 2100 resulting
in significant damage to humanity; (10) Such reductions
in CO2 emissions are technically feasible and economically affordable while providing adequate energy to a growing world population that is increasingly industrializing.
My personal views are: (1) Yes, it is true that increasing
greenhouse gas concentrations will tend to warm the Earth's surface and atmosphere; (2) Yes, human production of CO2 is producing
significant increases
in CO2 concentration; (3) The rates of
change of temperature
in the previous two millennia are uncertain because proxies have been misapplied by the hockey stick crowd.
The latter is a politico -(pseudo) scientific construct, developed since the late - 1980s,
in which the human emission of «
greenhouse gases», such as carbon dioxide and methane, is unquestioningly taken as the prime - driver of a new and dramatic type of climate
change that will inexorably result
in a
significant warming during the next 100 years and which will inevitably lead to catastrophe for both humanity and the Earth.
«Industrialised countries, including the USA, which have all done most to contribute to climate
change, must lead the way by making
significant cuts
in their
greenhouse gas emissions.
The NWRA's climate
change web page says there has been «a
significant increase
in atmospheric concentrations of
greenhouse gases»
in the last two decades, and that: «Scientific consensus is clear: these emissions are making the earth warmer
in an unusually fast time period.»
These moist enthalpy - related studies confirm previous results showing that
changes in vegetation cover, surface moisture and energy fluxes generally lead to
significant climatic
changes (e.g. 41 - 43) and responses which can be of a similar magnitude to that projected for future
greenhouse gas concentrations (44, 45).
In combination, these two research efforts add to the massive amount of scientific evidence that climate
change is always occurring; and, most definitely does not require human consumer / industrial
greenhouse gases to produce
significant impacts on planetary environments and those associated civilizations.
Moreover, at a time when we should be making massive cuts
in the emissions of
greenhouse gases into the atmosphere
in order to reduce the threat posed by climate
change, the food system is lengthening its supply chains and increasing emissions to the point where it is a
significant contributor to global warming.
In what his aides called one of the most significant policy addresses of his second and final term, the mayor argued that directly taxing emissions of carbon dioxide and other greenhouse gases that contribute to climate change will slow global warming, promote economic growth and stimulate technological innovation — even if it results in higher gasoline prices in the short ter
In what his aides called one of the most
significant policy addresses of his second and final term, the mayor argued that directly taxing emissions of carbon dioxide and other
greenhouse gases that contribute to climate
change will slow global warming, promote economic growth and stimulate technological innovation — even if it results
in higher gasoline prices in the short ter
in higher gasoline prices
in the short ter
in the short term.
Paolo Frankl, Head of IEA's Renewable Energy Division, commented: «Given that global energy demand for heat represents almost half of the world's final energy use - more than the combined global demand for electricity and transport - solar heat can make a
significant contribution
in both tackling climate
change and strengthening energy security, The IEA's Solar Heating and Cooling Roadmap outlines how best to advance the global uptake of solar heating and cooling (SHC) technologies, which, it notes, involve very low levels of
greenhouse -
gas emissions.
Significant progress
in reducing emissions and limiting climate
change could be achieved if companies 1) unequivocally communicate to the public, shareholders, and policymakers the climate risks resulting from continued use of their products, and therefore the need for restrictions on
greenhouse gas emissions consistent with the 2 °C global temperature target; 2) firmly reject contrary claims by industry trade associations and lobbying groups; and, 3) accelerate their transition to the production of low - carbon energy.
The space - time structure of natural climate variability needed to determine the optimal fingerprint pattern and the resultant signal - to - noise ratio of the detection variable is estimated from several multi-century control simulations with different CGCMs and from instrumental data over the last 136 y. Applying the combined
greenhouse gas - plus - aerosol fingerprint
in the same way as the
greenhouse gas only fingerprint
in a previous work, the recent 30 - y trends (1966 — 1995) of annual mean near surface temperature are again found to represent a
significant climate
change at the 97.5 % confidence level.
The consensus of the world's climate scientists is that man - made
greenhouse gas emissions are creating
significant changes in the global climate system.