The consequences of
continued increase of greenhouse gases extend far beyond extermination of species and future sea level rise.
«Barring a large volcanic eruption, a record global temperature clearly exceeding that of 2005 can be expected within the next few years, at the time of the next El Nino, because of the background warming trend attributable to
continuing increases of greenhouse gases.»
Not exact matches
«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.
«If the world does not reduce
greenhouse gas emissions,
continued heating could
increase the vulnerability
of plants, wildlife, physical features, and cultural resources in the globally unique US national parks.»
Assuming that
greenhouse gas emissions
continue to
increase, the widespread adoption
of cool roofs in the Los Angeles metropolitan area would offset some
of the warming expected by midcentury, the team reported in 2016 in Environmental Research Letters.
When we mitigate
greenhouse -
gas emissions, we also create huge co-benefits in the nature
of energy security, because if we
continue to
increase our consumption
of fossil fuels, we're really going to put pressure on limited resources
of these fossil fuels.
Levels
of the potent
greenhouse gas continue to rise and scientists aren't sure where most
of it is coming from, though likely suspects include fracking,
increased coal mining in China and a melting Arctic
Above - average warmth
continues as a result
of increasing concentrations
of greenhouse gases in the atmosphere
The scientists expect further warming in the Arctic as levels
of greenhouse gases will
continue to
increase and aerosol particle emissions will likely decrease to combat air pollution in different parts
of the world.
Under the worst - case scenario (RCP 8.5), which assumes that
greenhouse gas emissions
continue to rise throughout the 21st century, the authors show the potential for extremely large net
increases in temperature - related mortality in the warmer regions
of the world.
Current climate change models indicate temperatures will
increase as long as humans
continue to emit
greenhouse gases into the atmosphere, but the projections
of future precipitation are far less certain.
The ability
of the oceans to take up carbon dioxide can not keep up with the rising levels
of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will
continue to
increase unless humans cut their carbon dioxide emissions.
If these rates
continue, emissions
of methane, a
greenhouse gas 25 times more powerful than carbon dioxide on 100 - year time scales, will
increase 4 percent over the next decade.
It takes a long time for the ocean to respond to
increasing heat, so even if
greenhouse gas emissions dropped to zero tomorrow, the world's seas would
continue to rise for centuries because
of the warming that's already happened.
In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects
of a
continued increase in human - made emissions
of carbon dioxide and other
greenhouse gases.
A few
of the main points
of the third assessment report issued in 2001 include: An
increasing body
of observations gives a collective picture
of a warming world and other changes in the climate system; emissions
of greenhouse gases and aerosols due to human activities
continue to alter the atmosphere in ways that are expected to affect the climate; confidence in the ability
of models to project future climate has
increased; and there is new and stronger evidence that most
of the warming observed over the last 50 years is attributable to human activities.
Such climate changing pollution
continues to
increase — in 2010, the world emitted some 49 billion metric tons
of greenhouse gases, thanks largely to
increased coal burning in countries such as China.
Continued emissions
of greenhouse gases will cause further warming and long - lasting changes in all components
of the climate system,
increasing the likelihood
of widespread and profound impacts affecting all levels
of society and the natural world, the report finds.
Expansion
of the IPWP due to
increasing greenhouse gas concentrations will likely
continue.
Yet despite all the complexities, a firm and ever - growing body
of evidence points to a clear picture: the world is warming, this warming is due to human activity
increasing levels
of greenhouse gases in the atmosphere, and if emissions
continue unabated the warming will too, with increasingly serious consequences.
Scientists have not pinpointed the reason for the strengthening
of the low pressure system in the Amundsen Sea, but the number and intensity
of storms in the region could
continue to
increase throughout the 21st century as a consequence
of greenhouse gas warming, Thomas said.
Meanwhile, global emissions
of carbon dioxide and other
greenhouse gases continue to
increase, promising far worse to come.
This
continues the trend
of warming winters over the past few decades as the climate warms from
increasing greenhouse gases, with the eastern two - thirds
of the country warming the most during the winter.
As warming
continues from the
increasing amount
of greenhouse gases in the atmosphere, that ratio will likely
continue to rise.
Moreover, anthropogenic forcing from
increased greenhouse gases might outweigh orbital forcing for as long as intensive use
of fossil fuels
continues [9].
Projections based on 29 climate models suggest that the number
of high wildfire potential days each year could
increase by nearly 50 percent by 2050 if
greenhouse gas emissions
continue unabated.
But over the long term, as the planet
continues to warm from the
increase in
greenhouse gases, extended streaks
of heat are
«We know natural patterns contribute to global temperature in any given year, but the very warm temperatures so far this year indicate the
continued impact
of increasing greenhouse gases,» Stephen Belcher, the head
of the Met Office's Hadley Center, said.
Unless the twin pillars
of population growth and economic growth are whittled down and put into some ecological perspective,
greenhouse gas emissions will
continue to
increase for decades.
If nations
continue to
increase their emissions
of greenhouse gases in a «business - as - usual» scenario, the U.S. ratio
of daily record high to record low temperatures would
increase to about 20 to 1 by midcentury and 50 to 1 by 2100.
This continuous cooling trend is... a result
of increasing concentrations
of greenhouse gases in the atmosphere [and so will
continue].
It was caused by natural factors that likely
continued through the 20thcentury, making the recent warming more difficult to explain without the impact
of increased greenhouse gases.
Terrell Johnson, reporting on a recent NASA publication concluding that deep ocean temperatures have not
increased since 2005 (http://www.weather.com/science/environment/news/deep-ocean-hasnt-warmed-nasa-20141007): «While the report's authors say the findings do not question the overall science
of climate change, it is the latest in a series
of findings that show global warming to have slowed considerably during the 21st century, despite
continued rapid growth in human - produced
greenhouse gas emissions during the same time.»
At Jim Hansen's now famous congressional testimony given in the hot summer
of 1988, he showed GISS model projections
of continued global warming assuming further
increases in human produced
greenhouse gases.
In 2009, U.S.
greenhouse gas emissions were projected to
continue increasing indefinitely, but President Obama set an ambitious goal to cut emissions in the range
of 17 percent below 2005 levels in 2020.
Mass extinctions,
of more than half the species on the planet, have occurred several times when the Earth warmed as much as expected if
greenhouse gases continue to
increase.
Note also that there appears — already started — to be a likely
increase in drought frequency with atmospheric warming and associated acceleration
of the hydrologic cycle, assuming
continued greenhouse gas emissions.
And most scientists argue the world will
continue warming because
of increasing greenhouse gas emissions.
Climate models try to project how this global warming will
continue, but they differ in their response to
increasing concentrations
of greenhouse gases.
However, if
greenhouse gas emissions
continue to
increase along current trajectories throughout the 21st century, there is an 80 percent likelihood
of a decades - long megadrought in the Southwest and Central Plains between the years 2050 and 2099.
Continued greenhouse gas emissions leading to further warming would mean that the chances
of seeing years at 1.5 °C or more would likely
increase in future years.»
As a result, global warming will
continue to affect life on Earth for hundreds
of years, even if
greenhouse gas emissions are reduced and the
increase in atmospheric levels halted.
Heat stress is projected to
increase as a result
of both
increased summer temperatures and humidity.55, 61 One study projected an
increase of between 166 and 2,217 excess deaths per year from heat wave - related mortality in Chicago alone by 2081 - 2100.62 The lower number assumes a climate scenario with significant reductions in emissions
of greenhouse gases (B1), while the upper number assumes a scenario under which emissions
continue to
increase (A2).
However, current estimates
of lake level changes are uncertain, even for
continued increases in global
greenhouse gas emissions (A2 scenario).
Scenario A assumes that growth rates
of trace
gas emissions typical
of the 1970s and 1980s - will
continue indefinitely; the assumed annual growth averages about 1.5 %
of current emissions, so the net
greenhouse forcing
increases exponentially.
However, McCollam claimed that «our knowledge is currently so limited that we can not yet judge with any accuracy what might be the results
of continued increases in
greenhouse gases.»
The modeling results indicate that, if nations
continue to
increase their emissions
of greenhouse gases in a «business as usual» scenario, the U.S. ratio
of daily record high to record low temperatures would
increase to about 20 - to - 1 by mid-century and 50 - to - 1 by 2100.
However, the idea that
continued emissions
of greenhouse gases increase the likelihood
of catastrophe is entirely consistent with scientific knowledge»
«As we predicted last year, 2007 was warmer than 2006,
continuing the strong warming trend
of the past 30 years that has been confidently attributed to the effect
of increasing human - made
greenhouse gases,» said James Hansen, director
of NASA GISS.
These results suggest that as the Arctic
continues to warm faster than elsewhere in response to rising
greenhouse -
gas concentrations, the frequency
of extreme weather events caused by persistent jet - stream patterns will
increase.