Sentences with phrase «changes of that magnitude occurring»

«This doesn't sound like much, but keep in mind that if a change of this magnitude occurred in the human blood stream, we would die.»

I do not see activity changes of that magnitude occurring on your graph — admittedly the period of coverage is limited to 30 years and is therefore a very small sampling.

Not exact matches

Another set of tissues show a more sustained response, with gene expression changes of similar magnitude occurring through all PMI intervals (Fig. 2c).

Any change of this magnitude will require coordination from SkyTeam airline partners as well as American Express, so if it does indeed occur, we'll be writing all about it here on The TICKET.

... Polar amplification explains in part why Greenland Ice Sheet and the West Antarctic Ice Sheet appear to be highly sensitive to relatively small increases in CO2 concentration and global mean temperature... Polar amplification occurs if the magnitude of zonally averaged surface temperature change at high latitudes exceeds the globally averaged temperature change, in response to climate forcings and on time scales greater than the annual cycle.

Currently, the widespread scientific consensus is that global climate change of this magnitude has never occurred since the dawn of civilization.

Starting from an old equilbrium, a change in radiative forcing results in a radiative imbalance, which results in energy accumulation or depletion, which causes a temperature response that approahes equilibrium when the remaining imbalance approaches zero — thus the equilibrium climatic response, in the global - time average (for a time period long enough to characterize the climatic state, including externally imposed cycles (day, year) and internal variability), causes an opposite change in radiative fluxes (via Planck function)(plus convective fluxes, etc, where they occur) equal in magnitude to the sum of the (externally) imposed forcing plus any «forcings» caused by non-Planck feedbacks (in particular, climate - dependent changes in optical properties, + etc.).)

While we don't know precisely why the CO2 changes occur on long timescales, (the mechanisms are well understood; the details are not), we do know that explaining the magnitude of global temperature change requires including CO2.

Several of us have been looking, but nowhere can we find a defining paper that is quantitative, that shows where in the atmosphere the temperature change occurs and what its magnitude, sign and uncertainty are.

While the three ozone databases all show a reduction in ozone in the lower tropical stratosphere, the magnitude of this change differs substantially between them and occurs against a backdrop of much larger interannual variability.

Threshold - The level of magnitude of a system process at which sudden or rapid change occurs.

At the AGU 2013 meeting it was also noted that the reduction in the solar wind density has changed rise time of the solar wind bursts (the solar wind burst still occur but the rise time of the wind burst is significant less which in turn will reduce the solar wind bursts effect on the ionosphere, reduce the magnitude of the electroscangening effect.

Abrupt and severe temperature shifts have occurred on occasion in the past, typically separated by hundreds of years or more, but shifts of this magnitude that are global in extent have almost always occurred during glacial eras, when the extent of snow and ice allowed for great changes in feedback in response to only modest signals.

Note also, having aerosols a cooling means that your relationship between CO2 and temperature in the ice - cores is blown away; dust levels increase by three orders of magnitude going from warming to cooling, and dust changes occur before temperature changes, which occur before CO2 changes.

While this is certainly a true statement, it does not follow that we should increase the frequency and magnitude of water resource stress by increasing evaporation, drought frequency, water loss from plants, etc., as the USGCRP report notes will occur as human - induced climate change increases.

Trends in the peak magnitude, frequency, duration and volume of frequent floods (floods occurring at an average of two events per year relative to a base period) across the United States show large changes; however, few trends are found to be statistically significant.

It's not the magnitude of the changing insolation that is important: it's when and where it occurs!

Based on an extensive literature review, we suggest that (1) climate warming occurs with great uncertainty in the magnitude of the temperature increase; (2) both human activities and natural forces contribute to climate change, but their relative contributions are difficult to quantify; and (3) the dominant role of the increase in the atmospheric concentration of greenhouse gases (including CO2) in the global warming claimed by the Intergovernmental Panel on Climate Change (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentrchange, but their relative contributions are difficult to quantify; and (3) the dominant role of the increase in the atmospheric concentration of greenhouse gases (including CO2) in the global warming claimed by the Intergovernmental Panel on Climate Change (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentrChange (IPCC) is questioned by the scientific communities because of large uncertainties in the mechanisms of natural factors and anthropogenic activities and in the sources of the increased atmospheric CO2 concentration.

[T] hey can change their pattern of energy production and usage in order to limit emissions of greenhouse gases and hence the magnitude of climate changes; they can wait for changes to occur and accept the losses, damage and suffering that arise; they can adapt to actual and expected changes as much as possible; or they can seek as yet unproven «geoengineering» solutions to counteract some of the climate changes that would otherwise occur.

• Changes in the magnitude and temporal pattern of pollutant loading in the coastal ocean will occur as a result of changes in precipitation and Changes in the magnitude and temporal pattern of pollutant loading in the coastal ocean will occur as a result of changes in precipitation and changes in precipitation and runoff.

The authors recognize that there «remains a range of estimates on the magnitude and regional expression of future change» but state with certainty that «[f] urther climate change is inevitable» and «if emissions of greenhouse gases continue unabated, future changes will substantially exceed those that have occurred so far.»

Changes in the CR flux during large FD events are of the same order of magnitude as changes experienced over the decadal solar cycle, but occur over a period of several days (Čalogović et al.Changes in the CR flux during large FD events are of the same order of magnitude as changes experienced over the decadal solar cycle, but occur over a period of several days (Čalogović et al.changes experienced over the decadal solar cycle, but occur over a period of several days (Čalogović et al. 2010).

So while the jury is still out for this drought, there are droughts in the recent past, such as the Texas drought in 2011, where it was found that conditions, as a result of climate change, made it 20 times more likely for a drought of that magnitude to occur today as opposed to, say, the 1960s.

Another recent study, by scientists from the U.K., Hawaii and Massachusetts, concluded that «marine and freshwater assemblages have always experienced variable pH conditions,» and that «in many freshwater lakes, pH changes that are orders of magnitude greater than those projected for the 22nd - century oceans can occur over periods of hours.

... The impacts of [climate change] will be critically dependent on the magnitude of the warming and the rate with which it occurs.»

Several of the most difficult emerge from the long time - scale over which the changes occur (see Section 14.3) and the possible need for action well before the magnitude (and certainty) of the impacts is clear (see Section 14.5).

But the time scales are even more impressively different when you consider the magnitude of the changes and how fast they've occurred.