Sentences with phrase «scale climate change over»

Antarctic climate and ice sheet changes and their relationship to global scale climate change over the last 2000 years.

Not exact matches

Food - security experts from all over the world will converge on Belfast from 28 - 31 May 2018 for a major Summit on how to feed a growing global population — amid massive challenges such as climate change, Brexit, labyrinthine food - supply chains and food fraud on a global scale.

We highlight episodes of climate change that have disrupted ecosystems and trophic interactions over time scales ranging from years to millennia by changing species» relative abundances and geographic ranges, causing extinctions, and creating transient and novel communities dominated by generalist species and interactions.

Lead author PhD student Adam Hejnowicz said: «Seagrass meadows could play a vital role in combating climate change as they are regarded as a net global sink for carbon.They have the capacity to bury significant deposits of organic carbon beneath the sediment, up to many metres thick in places and over millenary time scales.»

Three federal agencies announced the launch Monday of a joint program to predict climate change and its impacts on local scales over a few decades, information that decision makers will need to adapt to the inevitable.

It's nothing a person would notice — a reduction barely more than one - tenth of one mile per hour — but on a large scale over an entire region, such a seemingly minor change has a profound effect on climate and air quality.

At local scales and over shorter periods, annual streamflow responds to seasonal changes in climate variables (e.g., temperature, precipitation) and related processes such as evapotranspiration.

They explore data showing temperature changes over the past 120 years and data illustrating climate trends over different time scales.

Moreover, it offers a better understanding of the link between orbital variations and climate change over geologic time scales.

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.

Although they've made a lot of progress over the last decades, we still do not really know how climate is changing on a local scale.

MalcolmT says: «Nick @ 20 Previous climate changes occurred over a time scale of hundreds or thousands of years.

Indeed, the utility of the term in describing past climate changes at regional scales has been questioned [see e.g. Jones, P.D., Mann, M.E., Climate Over Past Millennia, Reviews of Geophysics, 42, RG2002, doi: 10.1029 / 2003RG000143, 2004 and references thclimate changes at regional scales has been questioned [see e.g. Jones, P.D., Mann, M.E., Climate Over Past Millennia, Reviews of Geophysics, 42, RG2002, doi: 10.1029 / 2003RG000143, 2004 and references thClimate Over Past Millennia, Reviews of Geophysics, 42, RG2002, doi: 10.1029 / 2003RG000143, 2004 and references therein.]

cutting - edge climate scientists should repetitively remind consensus climate scientists that climate change is a dynamical coupled phenomenon that per Lovejoy (2017), https://doi.org/10.22498/pages.25.3.136, with an atmosphere that varies: «On scales ranging over a factor of a billion in space and over a billion billion in time...» (see the first image).

The new research is a regional climate study of historical sea level pressures, winds and temperatures over the eastern Pacific Ocean and draws no conclusions about climate change on a global scale.

If we decide, as Lomborg suggests, to focus exclusively on a handful of top priorities at the expense of all others, especially those that are more complex and operate over longer time scales, such as Climate Change, we are doing little more than arranging the Titanic's proverbial deck - chairs.

Back in 2001, Peter Doran and colleagues wrote a paper about the Dry Valleys long term ecosystem responses to climate change, in which they had a section discussing temperature trends over the previous couple of decades (not the 50 years time scale being discussed this week).

C is not constant for the dT» / dt equation to apply because heat penetrates through different parts of the climate system (different depths of the ocean in particular) over different time scales (also, if T» is supposed to be at some reference location or the global average at some vertical level, T» at other locations will vary; C will have to be an effective C value, the heat per unit change in the T» at the location (s) where T» occurs)

Can it be argued given the paleoclimate evidence for abrupt climate changes that there is likely no strong negative feedback over any meaningful time scale?

But this human adaptation time scale may be longer than the time over which climate change affects storms, so that comparatively small changes in the frequency of generational events can have large social consequences.

-- These storms should penetrate higher as climate warms according to the models, a positive feedback, and satellite data looking at cloud height changes over El Nino time scales show something similar and show the models getting that about right also, for physical reasons we think we understand

Now, scientists have taken the idea a step further — they're proposing that one of the most practical ways to cut greenhouse gases on a large scale is to build a forest of 100,000 artificial trees over the next 10 - 20 years.In its new report that outlines three practical geoengineering solutions to climate change, the UK based Institution of Mechanical Engineers has deemed artificial trees a development of utmost importance.

Attribution of the observed warming to anthropogenic forcing is easier at larger scales because averaging over larger regions reduces the natural variability more, making it easier to distinguish between changes expected from different external forcings, or between external forcing and climate variability.

The U.S. military seems interested in climate variations / change on timescales from seasonal to scales out to about 30 years, a period over which natural climate variability could very well swamp anthropogenically forced climate change.

SkyPower, the world's largest developer and owner of utility - scale solar energy projects, is proud to announce its landmark partnership agreement with COP21, the UN Framework Convention on Climate Change, which delegations representing over 150 countries will attend in Paris for 12 days with the objective of reaching a universal agreement on how to slow the rise of global temperatures.

Abstract — 2008 Climate and wildfires in the North American boreal forest... Climate controls the area burned through changing the dynamics of large - scale teleconnection patterns (Pacific Decadal Oscillation / El Niño Southern Oscillation and Arctic Oscillation, PDO / ENSO and AO) that control the frequency of blocking highs over the continent at different time scales......... Since the end of the Little Ice Age, the climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------Climate and wildfires in the North American boreal forest... Climate controls the area burned through changing the dynamics of large - scale teleconnection patterns (Pacific Decadal Oscillation / El Niño Southern Oscillation and Arctic Oscillation, PDO / ENSO and AO) that control the frequency of blocking highs over the continent at different time scales......... Since the end of the Little Ice Age, the climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------Climate controls the area burned through changing the dynamics of large - scale teleconnection patterns (Pacific Decadal Oscillation / El Niño Southern Oscillation and Arctic Oscillation, PDO / ENSO and AO) that control the frequency of blocking highs over the continent at different time scales......... Since the end of the Little Ice Age, the climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------climate has been unusually moist and variable: large fire years have occurred in unusual years, fire frequency has decreased and fire — climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ---------------climate relationships have occurred at interannual to decadal time scales...... http://rstb.royalsocietypublishing.org/content/363/1501/2315.short ----------------------

Their work encompasses a range of problems and time scales: from five - day model predictions of hurricane track and intensity, to understanding the causes of changes in extremes over the past century, to building new climate prediction models for seamless predictions out to the next several years, to earth system model projections of human - caused changes in various extremes (heat waves, hurricanes, droughts, etc.) over the coming century.

The Gravity Recovery And Climate Experiment (GRACE) is unique in its ability to measure changes in ocean bottom pressure (OBP) over the entire globe at large scales.

What kind of catastrophe can not be predicted, but numerous candidates have been discussed in this book: ecological collapses of various kinds, large - scale crop failures due to ecological stress or changes in climate and leading to mass famine; severe resource shortages, which could lead either to crop failures or to social problems or both; epidemic diseases; wars over diminishing resources; perhaps even thermonuclear war.»

c) Michael - Shawn Fletcher, Patricio Iván Moreno: Vegetation, climate and fire regime changes in the Andean region of southern Chile (38 ° S) covaried with centennial - scale climate anomalies in the tropical Pacific over the last 1500 years Quaternary Science Reviews, (16 July 2012) Volume 4, Pages 46 — 56.

-- the overall change to the global heat balance climate from basic physics bounded by paleo observations (over time increasingly constrained by modern observations)-- the probable overall patterns of regional change at a large scale — the range of impacts.

(A) coordinate programs at the National Oceanic and Atmospheric Administration to ensure the timely production and distribution of data and information on global, national, regional, and local climate variability and change over all time scales relevant for planning and response, including intraseasonal, interannual, decadal, and multidecadal time periods;

It's true that climate varies naturally over both short and long time - scales, but it's possible to distinguish natural climate change from human caused climate change.

BartH notes that «At relatively short time scales (say, a couple of decades), natural variability will dominate over systematic climate change, and there is more added value to expect from ensuring that the projections reflect natural variability adequately than to assess the degree to which the background climate changes.»

For all the admirable positions taken by many business leaders on climate change, Musk is the only high - profile figure to publicly envisage the true scale of the transformation that is required over the next three decades.

Current computer models can faithfully simulate many of the important aspects of the global climate system, such as changes in global average temperature over many decades; the march of the seasons on large spatial scales; and how the climate responds to large - scale forcing, like a large volcanic eruption.

Note also that the question of current climate change is quite another matter from that over time scales of many millions of years — despite Shaviv's remarkable press - release claims that «The operative significance of our research is that a significant reduction of the release of greenhouse gases will not significantly lower the global temperature».

Recent work (e.g., Hurrell 1995, 1996; Thompson and Wallace 1998; Corti et al., 1999) has suggested that the observed warming over the last few decades may be manifest as a change in frequency of these naturally preferred patterns (Chapters 2 and 7) and there is now considerable interest in testing the ability of climate models to simulate such weather regimes (Chapter 8) and to see whether the greenhouse gas forced runs suggest shifts in the residence time or transitions between such regimes on long time - scales.

«My engagement in the blogosphere over the past several years have convinced me that the blogosphere has untapped potential for educating the public and for enabling large - scale collective intelligence to address the scientific and policy challenges associated with climate change.»

WASHINGTON — The number of large - scale projects to capture and bury carbon dioxide has fallen to 65 from 75 over the last year, a worldwide survey has found, despite a consensus among scientists and engineers that such projects are essential to meet international goals for slowing the buildup of climate - changing gases.

However, changes in climate at the global scale observed over the past 50 years are far larger than can be accounted for by natural variability.

«Over the time - scale of millions of years, the change in solar intensity is a critical factor influencing climate (e.g., ice ages).

Thus there are primarily internal system changes forcing climate responses, not primarily external such as the absolute value of solar power (except over much longer time scales).

Under human influence, the Earth's climate system is not only changing in its totality and over a geological time - scale, it is also rendered more unstable and unpredictable.

«What we're going to be doing next is trying to understand more about the relationships between the proxies that we measured in the mosses, how they've changed over longer time scales, before the advent of the human influence on climate,» Dr. Amesbury revealed.

As this series has shown, the debate over a) whether climate change is a reality and b) its probable causes and / or solutions is crippling US politics and large - scale policymaking.

(71) If the conventional beliefs had been the same in 1993 as in 1953 — that significant climate change always takes many thousands of years — scientists would have passed over the decade - scale fluctuations in ice cores as meaningless noise.

By over more than 20 times the amount (see Milankovitch cycles — recently improved in Wiki) starts the climate relevance: see glacial times...... To the point: I do not talk about ELLIPTICITY CHANGES, they stay constant on millenium scale.

«Climate change of that scale will cause enormous resource wars, over water, arable land, and massive population displacements... We're not talking about 10,000 people.

Decision - makers need to know how climate change will affect specific political jurisdictions, and, more importantly, what types of interventions will make a difference, over what time scales, at what costs, and to whose benefit — and whose detriment.