Sentences with phrase «driving change of this magnitude»

«Driving change of this magnitude takes time,» said Dr. Howell Wechsler, CEO of the Alliance.

Not exact matches

Modern human - driven forces, like climate change and pollution, are «orders of magnitude more destructive than what early humans were doing,» Lyons said, but even at the dawn of human civilizations, people were certainly having major — and unprecedented — ecological impacts, she said.

In this earth system model, human belief systems and corresponding climate governance will drive anthropogenic GHG emissions that force the climate system, while the magnitude of climate change and related extreme events will influence human perception of associated risk.

That increases the size of the temperature change per «small change» of doubling of CO2 by almost one order of magnitude, and many people would dispute that an approximately 10 % GHG - driven temperature increase for a «small change» in greenhouse forcing is a «small temperature change».

Although the primary driver of glacial — interglacial cycles lies in the seasonal and latitudinal distribution of incoming solar energy driven by changes in the geometry of the Earth's orbit around the Sun («orbital forcing»), reconstructions and simulations together show that the full magnitude of glacial — interglacial temperature and ice volume changes can not be explained without accounting for changes in atmospheric CO2 content and the associated climate feedbacks.

Extrapolating from their forest study, the researchers estimate that over this century the warming induced from global soil loss, at the rate they monitored, will be «equivalent to the past two decades of carbon emissions from fossil fuel burning and is comparable in magnitude to the cumulative carbon losses to the atmosphere due to human - driven land use change during the past two centuries.»

-- Projected precipitation and temperature changes imply changes in floods, although overall there is low confidence at the global scale regarding climate - driven changes in magnitude or frequency of river - related flooding, due to limited evidence and because the causes of regional changes are complex.

Importantly, the changes in cereal yield projected for the 2020s and 2080s are driven by GHG - induced climate change and likely do not fully capture interannual precipitation variability which can result in large yield reductions during dry periods, as the IPCC (Christensen et al., 2007) states: ``... there is less confidence in the ability of the AOGCMs (atmosphere - ocean general circulation models) to generate interannual variability in the SSTs (sea surface temperatures) of the type known to affect African rainfall, as evidenced by the fact that very few AOGCMs produce droughts comparable in magnitude to the Sahel droughts of the 1970s and 1980s.»

He says low values of climate sensitivity will still affect global temperatures as CO2 concentrations in the atmosphere rise, but increases in temperature may be of similar magnitude to naturally driven temperature cycles, a scenario that has strong implications for how we manage causes and consequences of climate change.

Despite the overwhelming scientific consensus to the contrary, EPA Administrator Pruitt has questioned whether carbon dioxide causes climate change and the magnitude of humans» role in driving it.

Although it is important to reduce the remaining climate uncertainties, such as the magnitude of the impacts of short - lived pollutants, it does not change the fact that CO2 is very likely the driving force behind the current global warming, or that if we double the amount of CO2 in the atmosphere from pre-industrial levels, the planet will likely warm in the range of 2 to 4.5 °C.

The similarity of the model responses despite the widely varying transports of salt into the North Atlantic across its southern boundary (and hence sign and magnitude of the salt advection feedback) suggests that like the CMIP3 models (Gregory et al., 2005), the reduction of the AMOC in the global warming experiments performed by the CMIP5 models is mainly driven by local changes in surface thermal flux rather than surface freshwater flux.

Representative Concentration Pathways (RCPs) are scenarios for rates and magnitudes of climate change driven by greenhouse gas emissions.