Some models project
a faster rate of global warming than others, but it is not yet clear whether this involves systematic differences at the regional scale.
Not exact matches
Oceans, which have
warmed at an increasingly
faster rate, account for as much as 50 percent
of global sea level rise, according to a new study.
However, the big unknown remaining is whether corals can adapt to
global warming, which is now occurring at an unprecedented
rate — at about two orders
of magnitude
faster than occurred with the ending
of the last Ice Age.
Major climate data sets have underestimated the
rate of global warming in the last 15 years owing largely to poor data in the Arctic, the planet's
fastest warming region.
What I'm confused about is that I'm under the assumption that the
rate of global warming is increasing at a
faster rate but Jones figures indicate they've been pretty even.
Human activities are releasing greenhouse gases more than 30 times
faster than the
rate of emissions that triggered a period
of extreme
global warming in the Earth's past, according to an expert on ancient climates.
That said, during long periods
of negative PDO, the
rate of global warming is slower, and during positive periods
of the PDO, the
rate of warming is
faster.
Global warming does not mean no winter, it means winter start later, summer hotter, as Gary Peters said «The global average surface temperature has risen between 0.6 °C and 0.7 °C since the start of the twentieth century, and the rate of increase since 1976 has been approximately three times faster than the century - scale trend.&
Global warming does not mean no winter, it means winter start later, summer hotter, as Gary Peters said «The
global average surface temperature has risen between 0.6 °C and 0.7 °C since the start of the twentieth century, and the rate of increase since 1976 has been approximately three times faster than the century - scale trend.&
global average surface temperature has risen between 0.6 °C and 0.7 °C since the start
of the twentieth century, and the
rate of increase since 1976 has been approximately three times
faster than the century - scale trend.»
But the sheer
rate of increase over just the past 55 years shows how
fast global warming could hit us in the future — and the present — and underscores how much we've failed as a planet to slow down carbon emissions.
Since the source
of anthropogenic
global warming is ostensibly increasing concentration
of CO2 in the atmosphere, it makes no sense to posit that over time the oceans will
warm at a
faster rate than the atmosphere above them.
Qin Dahe, also co-chair
of the working group, said: «As the ocean
warm, and glaciers and ice sheets reduce,
global mean sea level will continue to rise, but at a
faster rate than we have experienced over the past 40 years.»
Alternet:
Global temperatures may be climbing at a
rate too
fast for our forests and its biodiversity to adapt, a scientist with the Center for International Forestry Research (CIFOR) warned after the World Bank predicted a 4 °C
warming of the planet if policymakers continue to be apathetic about greenhouse gas emissions.
Major climate data sets have underestimated the
rate of global warming in the last 15 years owing largely to poor data in the Arctic, the planet's
fastest warming region.
That is roughly twice as much as scientists previously thought and three times the overall
rate of global warming, making central West Antarctica one
of the
fastest -
warming regions on earth.
This is a hemispheric
warming rate of approximately 2.0 °C per decade, which is 40 times
faster than the 0.05 °C per decade
global warming rate since 1850 (and 1998).
Fast action to reduce short - lived climate pollutants (SLCPs) could slow the
rate of global warming while saving millions
of lives over the next several decades from air pollution — which now kills more than 6 million people a year.
The results here reveal a larger picture — that the western tropical Indian Ocean has been
warming for more than a century, at a
rate faster than any other region
of the tropical oceans, and turns out to be the largest contributor to the overall trend in the
global mean sea surface temperature (SST)»
Despite fears that
global warming is harming the Arctic region
faster than the rest
of the world, Greenland is defying climate scientists and currently growing at its
fastest rate in four years.
When the
warming of the Earth's entire climate system is considered,
global warming continues to rise at a
rate equivalent to about 4 Hiroshima atomic bomb detonations per second,
faster over the past 15 years than the prior 15 years.
iii) Over the last 3 decades, every individual station north
of 70o indicates
warming, 13
of 17 are significant at 95 % confidence, all estimated trend
rates are
faster than the
global average, some are more than five times as
fast.
Note that regional proxies, such as the oxygen - isotope temperature reconstructions from the Greenland Ice Core Project that record Dansgaard - Oeschger events, often indicate
faster regional
rates of climate change than the overall
global average for glacial - interglacial transitions, just as today
warming is more pronounced in Arctic regions than in equatorial regions (Barnosky et al., 2003; Diffenbaugh and Field, 2013).
The current
rate of global warming,
faster than any observed in the geological record, is already having a major effect in many parts
of the world in terms
of droughts, fires, and storms.
Because the observed and predicted
rate of increase in greenhouse gas concentrations and
global warming is
faster than seems to have happened during the Last Interglacial may mean that we are heading into uncertain territory.
Since the ocean surface
warms overall at about only half the
rate of the land surface (due to the larger thermal inertia), it is to be expected that the lower troposphere wouldn't
warm as
fast as the
global surface average.
As this column has sometimes pointed out ways in which the effects
of global warming are happening more slowly than predicted, it is fair to record that this
rate of decline in Arctic sea ice is
faster than many predicted.