Their results suggest that even if there is
no additional warming of the climate system, 36 % of glacier ice will still eventually disappear.
Not exact matches
A large number
of additional observations are broadly consistent with the observed
warming and reflect a flow
of heat from the atmosphere into other components
of the
climate system.
The implication: because average temperatures may
warm by at least one degree C by 2030, «
climate change could increase the incidences
of African civil war by 55 percent by 2030, and this could result in about 390,000
additional battle deaths if future wars are as deadly as recent wars.»
«It's important that clinicians educate runners on the ways to minimize their risk
of heat stroke, including allowing 10 - 14 days to adjust to a
warm climate, discouraging running if a person is ill or was recently ill because a pre-existing fever impairs the body's ability to dissipate
additional heat stress, and developing better methods
of monitoring body core temperature during physical activity..»
But the change from 2004 to 2007 in the sun's output
of visible light, and the attendant
warming at Earth's surface
of 0.1 watt per square meter, is roughly equivalent to the overall forcing
of the sun on the
climate over the past 25 years — estimated by the U.N. Intergovernmental Panel on Climate Change to be an additional 0.12 watt per square
climate over the past 25 years — estimated by the U.N. Intergovernmental Panel on
Climate Change to be an additional 0.12 watt per square
Climate Change to be an
additional 0.12 watt per square meter.
However, a new University
of Minnesota study with more than 1,000 young trees has found that plants also adjust — or acclimate — to a
warmer climate and may release only one - fifth as much
additional carbon dioxide than scientists previously believed, The study, published today in the journal Nature, is based on a five - year project, known as «B4Warmed,» that simulated the effects
of climate change on 10 boreal and temperate tree species growing in an open - air setting in 48 plots in two forests in northern Minnesota.
The study, published in Nature
Climate Change, suggests that nearly 4 million square kilometres
of frozen soil — an area larger than India — could be lost for every
additional degree
of global
warming experienced.
Studies such as Otto et al. (2012) display how the numerical scale
of the simulation numbers allows for clear separation between a
climate with lower level
of heat - trapping gases (1960s) and the recent period (2000s), such that the 2010 heat wave in western Russia was more likely to occur with the
additional warming due to
climate change (Figure 3).
The first is to emphasize your point that degassing
of CO2 from the oceans is not simply a matter
of warmer water reducing CO2 solubility, and that important
additional factors include changes in wind patterns, reduction in sea ice cover to reveal a larger surface for gas escape, and upwelling
of CO2 from depths consequent to the changing
climate patterns.
In the next 50 years, even the lower limit
of impending
climate change — an
additional global mean
warming of 1 degree Celsius above the last decade — is far beyond the range
of climate variability experienced during the past thousand years and poses global problems in planning for and adapting to it.
-- Given these constraints on
climate forcing trends, we predict
additional warming in the next 50 years
of 3/4 + / - 1/4 °C, a
warming rate
of 0.15 + / - 0.05 °C per decade.
Permafrost modeling studies typically indicate a potential release
of in the neighborhood ~ 200 PgC as carbon dioxide equivalent by 2100, though poorly constrained, but comparable to other biogeochemical and
climate - ecosystem related feedbacks, such as the
additional CO2 released by the
warming of terrestrial soils.
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.
In the GISS «committed
climate change» simulations, most
of the
additional warming has occured by 2050, but there remains a slow increase for decades afterwards.
«Based on
climate model studies and the history
of the Earth the authors conclude that
additional global
warming of about 1 °C (1.8 °F) or more, above global temperature in 2000, is likely to be dangerous.»
If low - cloud cover increases as the
climate warms, the
warming is muted by the
additional reflection
of sunlight.
Some
climate scientists have looked at the potential impact
of such an event and concluded that it likely would delay
additional global
warming — but only until the sun returned to more - normal swings in sun - spot activity.
Its definition as a pollutant relies entirely on its alleged causation
of significant global
warming and on the
additional assumption that a
warmer climate is damaging.
Psychologists studying
climate communication make two
additional (and related) points about why the
warming - snow link is going to be exceedingly difficult for much
of the public to accept: 1) people's confirmation biases lead them to pay skewed attention to weather events, in such a way as to confirm their preexisting beliefs about
climate change (see p. 4
of this report); 2) people have mental models
of «global
warming» that tend to rule out wintry impacts.
New research has found evidence
of a positive feedback mechanism brought on by
climate change in which global
warming itself may intensify a rise in greenhouse gases, resulting in
additional warming.
But to avoid the worst impacts
of climate change and keep the world on a path that could limit global
warming to 2 degrees C, IEA projects that an
additional 18 percent, or $ 5 trillion, in cumulative investment would be needed through 2035.
Additional projected 21st Century
warming will produce a
climate unlike anything experienced in the history
of human civilization.
Climate scenarios from the Half a degree
Additional warming, Projections, Prognosis and Impacts project (HAPPI) are largely consistent with transient scenarios extracted from RCP4.5 simulations
of the Coupled Model Intercomparison Project phase 5 (CMIP5).
The think tank
Climate Interactive has estimated that the U.S. on its own would account for an
additional.3 degrees Celsuis -LRB-.5 degrees Fahrenheit)
of warming by the year 2100 - if it leaves the Paris deal and takes no actions to reduce emissions for the rest
of the centurybut other countries fully live up to their current pledges.
However, the studies also show that without
additional action, the INDCs are insufficient to limit
warming to below 2 °C and avoid some
of the worst
climate impacts.
Here are some
additional linear regressions for some
of the oldest data sets in the world - all show the same slight
warming trend over centuries and
climate variability.
The study, conducted by
climate change experts from the universities
of Leeds and Exeter and the Met Office, all in the UK, and the universities
of Stockholm and Oslo, suggests that nearly four million square kilometres
of frozen soil — an area larger than India — could be lost for every
additional degree
of global
warming the planet experiences.
«The
climate alarmists maintain that man's emissions
of CO2 caused such a rapid increase world - wide, and further increases in CO2 will create
additional catastrophic global
warming.
Furthermore, the sustained melting
of Greenland ice and other ice stores under
climate warming, coupled with the impacts
of a possible abrupt shut - down
of the Atlantic meridional overturning circulation (MOC) after 2100, provide
additional uncertainty to sea - level rise for Europe (Gregory et al., 2004; Levermann et al., 2005; Wigley, 2005; Meehl et al., 2007).
The INDCs will largely determine whether the world is on a path to avoid catastrophic
climate change by avoiding
additional warming of no more than 2 °C.
High mean temperatures in July decreased the growth
of 40 %
of white spruce at treeline areas in Alaska, whereas
warm springs enhance growth
of additional 36 %
of trees and 24 % show no significant correlation with
climate.
Implications include (i) the expectation
of additional global
warming of about 0.6 °C without further change
of atmospheric composition; (ii) the confirmation
of the
climate system's lag in responding to forcings, implying the need for anticipatory actions to avoid any specified level
of climate change; and (iii) the likelihood
of acceleration
of ice sheet disintegration and sea level rise.
If
climate models are able to reproduce past
warm climatic conditions (such as those
of the LIG), including the extent
of Arctic sea ice cover, we will have
additional confidence in their representation
of Arctic processes and their projections for the future20, 21,22,23.
Even in light
of the complexities and uncertainties, Hulme et al. (2001) state that a «
warming climate will nevertheless place
additional stresses on water resources [in Africa], whether or not future rainfall is significantly altered» and they project reduced precipitation over Tunisia.
Since 1680 was long before co2 began increasing and also well before the industrial revolution, and — it would have taken considerable
additional time for the low annual increase in co2, when it did finally begin, to have an impact on temperature, it's safe to state that the first 200 years
of warming were merely natural
climate variation.
(Athanasiou and Bear 2002) The 2oC upper temperature limit is quite controversial scientifically because, as we shall see, some scientists believe that lower amounts
of additional warming could set into motion rapid
climate changes that could greatly harm people around the world and increases
of as little as 1oC will likely greatly harm some people in some regions.
The international community agreed at a meeting
of the conference
of the parties under the United Nations Framework Convention on
Climate Change in Copenhagen in 2009 that the world must work together to limit warming to an additional 2oC to avoid rapid non-linear impacts from climate
Climate Change in Copenhagen in 2009 that the world must work together to limit
warming to an
additional 2oC to avoid rapid non-linear impacts from
climate climate change.
Because any
additional warming from current levels could have serious consequences to those most vulnerable to
climate change, those who are most vulnerable should have as a matter
of procedural justice rights to consent to put at risk by the
additional 2 °C goal adopted in the Accord.
Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence
of oxygen releases
additional methane.116 Extensive wildfires also release carbon that contributes to
climate warming.107, 117,118 The capacity
of the Yukon River Basin in Alaska and adjacent Canada to store carbon has been substantially weakened since the 1960s by the combination
of warming and thawing
of permafrost and by increased wildfire.119 Expansion
of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption
of the sun's energy and further contributing to
warming.120 This
warming is likely stronger than the potential cooling effects
of increased carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow - covered seasons in Alaska further increase energy absorption by the land surface, an effect only slightly offset by the reduced energy absorption
of highly reflective post-fire snow - covered landscapes.121 This spectrum
of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts by society to use ecosystem carbon management to offset fossil fuel emissions.94, 95,96
Anyone needing
additional confirmation need only read the national headlines for a couple
of months and observe its ongoing response to Anthropogenic
Climate Change (nee Anthropogenic Global
Warming).
Studies such as Otto et al. (2012) display how the numerical scale
of the simulation numbers allows for clear separation between a
climate with lower level
of heat - trapping gases (1960s) and the recent period (2000s), such that the 2010 heat wave in western Russia was more likely to occur with the
additional warming due to
climate change (Figure 3).
With
warming greater than 2 °C, there is a high risk
of abrupt and irreversible changes to ecosystems such as forests, which would lead to «substantial
additional climate change» considering that trees sequester significant amounts
of carbon dioxide.
I don't need to know all
of the subtle characteristics and interactions in a
climate model to understand that it doesn't account for water vapor forming
additional clouds which act as a negative feedback on
warming.
By 2100, tropical regions would also experience
warm spells lasting up to 50 percent longer in a 2 C world than at 1.5 C. «For heat - related extremes, the
additional 0.5 C increase marks the difference between events at the upper limit
of present - day natural variability and a new
climate regime, particularly in tropical regions,» Schleussner said.
Climate change has been steadily raising the earth's average temperature in recent decades, but climatologists expected
additional warming this year and next due to the influence
of El Niño.
This Synthesis Report repeats with greater certainty findings that have figured prominently in earlier IPCC assessments, that the Earth's
climate is
warming «unequivocally,» that the human influence in this process is «clear» and that the changing
climate is very likely to bring impacts:» [w] ithout
additional mitigation efforts beyond those in place today, and even with adaptation,
warming by the end
of the 21st century will lead to high to very high risk
of severe, widespread, and irreversible impacts globally.»
Based on
climate model studies and the history
of the Earth, the Hansen and Sato conclude that
additional global
warming of about 1ºC (1.8 ºF) or more, above global temperature in 2000, is likely to be dangerous.
The social cost
of carbon is the discounted monetary value
of future
climate change damages due to
additional CO2 emissions (for example, the costs
of adverse agricultural effects, protecting against rising sea levels, health impacts, species loss, risks
of extreme
warming scenarios, and so on).
There certainly have been times in the past when the Earth was
warmer than it is now, but
climate scientists project that we're only at the start
of a
warming response to the CO2 that's already in the air (not to mention all the
additional CO2 that will be going into the air in years to come.)
This study finds that global
warming of 0.6 ºC in the past 30 years has been driven mainly by increasing greenhouse gases and only moderate
additional climate forcing is likely to set in motion disintegration
of the West Antarctic ice sheet and Arctic sea ice.