Sentences with phrase «uncertainties over climate»

Additionally uncertainty over climate change science can also be interpreted as a suggesting a policy of wait - and - see.

Not exact matches

If uncertainty is the main impediment to investment decisions, then it should subside over time as economies heal, improving the investment climate.

Even just uncertainty over future tax hikes can be enough to drive investment out of the state toward a more investment - friendly, fiscally sound climate.

Air France's move comes amid international uncertainty over whether U.S. President Donald Trump will pull out of a nuclear deal with Iran, although the spokeswoman said the decision was not linked to the political climate with Iran.

The EPA last night sent employees a list of eight approved talking points on climate change from its Office of Public Affairs — guidelines that promote a message of uncertainty about climate science and gloss over proposed cuts to key adaptation programs.

By improving the understanding of how much radiation CO2 absorbs, uncertainties in modelling climate change will be reduced and more accurate predictions can be made about how much Earth is likely to warm over the next few decades.

But the many scientific uncertainties, and the sheer complexity of climate, made room for limitless debate over what actions, if any, governments should take.

Given the losses in Russia and Australia in the past year that constricted global supply and generated conflicts over rising food prices, this insurance against climate uncertainty is critical.

«Finding the thresholds in plant physiology after which climate stress causes tree mortality will allow us to resolve uncertainty over the fate of forest ecosystems in a changing climate,» said lead author Anderegg.

There has been uncertainty over exactly how Antarctica's climate is changing.

That said, the news comes at a time of great uncertainty over the future of global emissions reduction efforts, while nations around the world are convening in Germany for the U.N. climate conference.

The NRC asked the committee to summarize current scientific information on the temperature record for the past two millennia, describe the main areas of uncertainty and how significant they are, describe the principal methodologies used and any problems with these approaches, and explain how central is the debate over the paleoclimate temperature record to the state of scientific knowledge on global climate change.

Indeed, the main quandary faced by climate scientists is how to estimate climate sensitivity from the Little Ice Age or Medieval Warm Period, at all, given the relative small forcings over the past 1000 years, and the substantial uncertainties in both the forcings and the temperature changes.

The big takeaway from this study: While there is uncertainty in projections for changes in the climate indices reviewed here (especially El Niño and La Niña), this study serves to alert us to the fact that the climate impacts that our local coastal communities face are based in large part on changes that occur on both a large, global scale and over the long, decadal term.

Prior to joining ECI, she completed her Ph.D. at Oregon State University, where she worked on the weather@home project over western US region, looking at drivers of extreme drought events in the US, future regional climate change projections over the western US, as well as investigating uncertainties due to internal variability and physical parameter perturbations.

Mike Wallace's talk was about the «National Research Council Report on the «Hockey Stick Controversy»... The charge to the committee, was «to summarize current information on the temperature records for the past millennium, describe the main areas of uncertainty and how significant they are, describe the principal methodologies used and any problems with these approaches, and explain how central is the debate over the paleoclimate record within the overall state of knowledge on global climate change.»

I think, climate change was prematurely over hyped and by the time the climate science community sorts out uncertainties nobody will listen.

The model results (which are based on driving various climate models with estimated solar, volcanic, and anthropogenic radiative forcing changes over this timeframe) are, by in large, remarkably consistent with the reconstructions, taking into account the statistical uncertainties.

The uncertainty includes our own wavering over our human and economic response, layered over our inability to predict the ice sheet response as a function of CO2 and other climate drivers under our control.

It is not the statement of uncertainty that causes problems rather the over statement of certainty in press releases that causes the loss of confidence in climate science.

With the combination of (a) complexities = uncertainties and (b) time lags and lengths of effects over decades and centuries, climate - change grasp and responsible response are really tough to communicate.

In other words, it is possible that the the climate system does exhibit some kind of long - term chaos in some circumstances, but that the forcing is strong enough to wipe out any significant uncertainty due to initial conditions — at least if one is content to forecast statistical quantities such as, for example, decadal mean January temperatures in some suitably large region, or perhaps temperature variances or quartiles taken over a similar period.

Indeed, the main quandary faced by climate scientists is how to estimate climate sensitivity from the Little Ice Age or Medieval Warm Period, at all, given the relative small forcings over the past 1000 years, and the substantial uncertainties in both the forcings and the temperature changes.

Permit prices, since they would be more volatile over time than a specified tax trajectory, would mask the critical long - term signal that carbon will always be more expensive next year than it is today; that is, unavoidable volatility in permit prices would raise the economic cost of any climate target by clouding investment decisions with another source of uncertainty.

While it's fashionable these days to fight over who's in denial about what facts on climate change, a focus on known uncertainty goes way back.

e360: You've written recently about uncertainty over the future impacts of climate change and how that plays a role in discouraging action in reducing greenhouse gases.

There is still some uncertainty regarding what, exactly, our climate (not to mention society) will do over the next 100 years.

UK Study 2011: * Scepticism and uncertainty about climate change: Dimensions, determinants and change over time * Highlights — 1) Scepticism is strongly determined by environmental and political values rather than by education or knowledge.

The terminology that the IPCC uses — such as «virtually certain», «very likely», «likely» etcetera and the very careful definitions that are attached to them, are an excellent way of communicating the uncertainties around various aspects of climate change, and are a significant improvement over the traditional way of discussing uncertainties in the scientific literature.

The many scientific uncertainties, and the sheer complexity of climate, made room for limitless debate over what actions, if any, governments should take.

Nuclear is absolutely needed not just to stop the hand - wringing over climate change but to free mankind from the erstwhile shackles of fossil fuels, which by comparison, is dirty, expensive, inefficient, dangerous to mine, transport, and refine, and fraught with geopolitical dangers and uncertainties.

Because of the uncertainties in projected sea level rise over the remainder of this century, Sasmito and his co-authors use both the low and the high sea level rise scenario from the most recent International Panel on Climate Change (IPCC) report (AR5).

The greatest economic uncertainty is not over climate, but over how much oil is left and how fast we can transition to alternatives.

The WGI contribution to the TAR — Climate Change 2001: The Scientific Basis — found, «In the light of new evidence and taking into account the remaining uncertainties, most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations.»

In addition, there are numerous uncertainties in the climate models themselves, due to the challenge of numerically simulating all relevant aspects of the climate system over long timescales of decades to centuries.

Differences between high and low projections in climate models used by the IPCC stem mainly from uncertainties over feedback mechanisms - for example, how the carbon cycle and clouds will react to future warming.

Why not construct some emissions scenarios that cover what you think might happen over the next 50 (or 100) years, and then run those scenarios through a range of leading climate models, performing multiple runs for each model to capture both the uncertainty in the model physics and internal variability.

«Because the 21 individual reports are planned to address scientific uncertainties associated with climate change and other technical subjects and are to be issued over a period of three or more years, it may be difficult for the Congress and others to use this information effectively as the basis for making decisions on climate policy,» according to the GAO.

Uncertainty over this factor, as well as concern over rising climate impacts on people, on farming & fisheries and on biodiversity, adds to the case for the mandating of the UN Geo - E research - supervision agency being a matter of paramount priority as part of an equitable and efficient climate treaty.

If we have concerns over how much CO2 effects the flux, which makes it an overall climate response or feedback parameter, then we might also consider the uncertainty in the 3.7 number.

By Dr. Tim Ball It is not surprising that Roe and Baker explained in a 2007 Science paper that, «The envelope of uncertainty in climate projections has not narrowed appreciably over the past 30 years, despite tremendous increases in computing power, in observations, and in the number of scientists studying the problem.»

That is to say, decisions over the next two or three decades affecting this larger context may influence the climate of 2100 and beyond in ways that are at least as significant as the implications of even the major current scientific uncertainties, like climate sensitivity and long - term ice - sheet stability.

Assuming that climate change and other deep uncertainties can not be eliminated over the short term (and probably even over the longer term), it then summarizes existing decision - making methodologies that are able to deal with climate - related uncertainty, namely cost - benefit analysis under uncertainty, cost - benefit analysis with real options, robust decision making, and climate informed decision analysis.

However, internal climate variability creates irreducible uncertainty in the projected future trends in snow resource potential, with about 90 % of snow - sensitive basins showing potential for either increases or decreases over the near - term decades.

Drawing on case studies of past environmental debates such as those over acid rain and ozone depletion, science policy experts Roger Pielke Jr. and Daniel Sarewitz argue that once next generation technologies are available that make meaningful action on climate change lower - cost, then much of the argument politically over scientific uncertainty is likely to diminish.26 Similarly, research by Yale University's Dan Kahan and colleagues suggest that building political consensus on climate change will depend heavily on advocates for action calling attention to a diverse mix of options, with some actions such as tax incentives for nuclear energy, government support for clean energy research, or actions to protect cities and communities against climate risks, more likely to gain support from both Democrats and Republicans.

And that is a lot given that on this site commenters bend over backwards to find and manufacture fault with every single possible thing I write or suggest, since I take issue with climate change skepticism and, while there is a range of uncertainty regarding exact future change (and the exact time frame) suggest that skepticism over the idea of significant risk of major future climate shift is generally based on a misunderstanding of the basic issue and many of its components.

Thus, internal variability of the NAO imparts substantial uncertainty to future changes in regional climate over the coming decades.

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.

-LSB-...] but in the instance the now famous [now deleted] AR5 Second Draft Figure 1.5 discussed over at Climate Audit back on Oct 8th we have a figure that contains a curious grey graphic artifact masquerading as an uncertainty -LSB-...]

Over decades, improvements in observations of the present climate, reconstructions of ancient climate, and computer models that simulate past, current, and future climate have reduced some of the uncertainty in forecasting how rising temperatures will ripple through the climate system.