Sentences with phrase «forced by climate change»

Earth's largest apes died off because they could not adapt to a new diet forced by climate change 100,000 years ago.

Not exact matches

In the book, they examine the repercussions on leadership by combined forces of globalization, climate change, increased individualism, and accelerating digitization.

In his book The World in 2050: Four Forces Shaping Civilization's Northern Future, Laurence Smith, a professor of geography and earth and space sciences at UCLA, argues that we're about to see a productivity and culture boom in the north, driven by climate change, shifting demographics, globalization and the hunt for natural resources.

Almost 200 nations are aiming to agree a new global pact to combat climate change by 2015 that would enter into force in 2020.

As many as 143 million people in three of the world's most vulnerable regions could be forced by 2050 to migrate within their own country due to climate change, a new report says.

Climate change amplifies existing risks to our natural resources by forcing plants and animals to adapt rapidly to a changing environment.

There are frequent rail accidents and pipeline explosions, evidence of long term water contamination esp around Dimock PA and in WY, non disclosure agreements forced on people whose health has been damaged from exposure to toxic emissions, secrecy about all of these issues, and climate changes caused by too much fossil fuel emissions.

Cutting energy bills by scrapping outright social and green levies punishes the fuel poor and punishes the future generations who will confront the full force of climate change.

He said, «Men, women and children are forced by civil conflicts, prosecutions, wars, natural disasters and even climate change to move from their homes to places of refuge, safety and succour.

If entire populations are forced to relocate by rising seas as a result of climate change, do they remain citizens of a vanished country?

At the most recent U.N. climate change conference in Durban, South Africa, Chinese leaders accepted an agreement that could force them to take binding emissions targets by 2020.

Flooded farmland has already forced thousands of Bangladeshis to higher ground, but that's just the tip of the iceberg, so to speak, of the numbers of people who will need to move because of climate change in the coming decade, according to a report released by the Center for International Earth Science Information Network (CIESIN) at Columbia University, the United Nations University and CARE International today.

In view of the ongoing destruction caused by rampant deforestation, the introduction of alien species and climate change — to name but a few of the forces we are unleashing on the planet — the idea that we might deny future generations the opportunity to perform a small act of creation through cloning seems woefully short - sighted.

Thus, climate changes forced by CO2 depend primarily on cumulative emissions, making it progressively more and more difficult to avoid further substantial climate change.

But the change from 2004 to 2007 in the sun's output of visible light, and the attendant warming at Earth's surface of 0.1 watt per square meter, is roughly equivalent to the overall forcing of the sun on the climate over the past 25 years — estimated by the U.N. Intergovernmental Panel on Climate Change to be an additional 0.12 watt per square change from 2004 to 2007 in the sun's output of visible light, and the attendant warming at Earth's surface of 0.1 watt per square meter, is roughly equivalent to the overall forcing of the sun on the climate over the past 25 years — estimated by the U.N. Intergovernmental Panel on Climate Change to be an additional 0.12 watt per squareclimate over the past 25 years — estimated by the U.N. Intergovernmental Panel on Climate Change to be an additional 0.12 watt per squareClimate Change to be an additional 0.12 watt per square Change to be an additional 0.12 watt per square meter.

OSLO, Jan 8 (Reuters)- Governments need to plan better for rising migration driven by climate change, experts said on Thursday, citing evidence that extreme weather and natural disasters force far more people from their homes than wars.

Fact # 1: Carbon Dioxide is a Heat - Trapping Gas Fact # 2: We Are Adding More Carbon Dioxide to the Atmosphere All the Time Fact # 3: Temperatures are Rising Fact # 4: Sea Level is Rising Fact # 5: Climate Change Can be Natural, but What's Happening Now Can't be Explained by Natural Forces Fact # 6: The Terms «Global Warming» and «Climate Change» Are Almost Interchangeable Fact # 7: We Can Already See The Effects of Climate Change Fact # 8: Large Regions of The World Are Seeing a Significant Increase In Extreme Weather Events, Including Torrential Rainstorms, Heat Waves And Droughts Fact # 9: Frost and Snowstorms Will Still Happen in a Warmer World Fact # 10: Global Warming is a Long - Term Trend; It Doesn't Mean Next Year Will Always Be Warmer Than This Year

The aquarium trade and other wildlife consumers are at a crossroads forced by threats from global climate change and other anthropogenic stressors that have weakened coastal ecosystems.

The extraordinary forces of plate tectonics and a changing climate have transformed East Africa from a relatively flat, forested region to a mountainous fragmented landscape dominated by the rapid appearance and disappearance of huge, deep - water lakes.

Climate science still faces the dilemma articulated by the late Steve Schneider and misrepresented by his adversaries — how do we best ensure that the public arrives at an accurate understanding of climate change, when the «sound bite» limits on our speaking time to the media force us to choose between making a few points with all the appropriate caveats, vs presenting details of all the points we believe important but without acknowledging uncertaClimate science still faces the dilemma articulated by the late Steve Schneider and misrepresented by his adversaries — how do we best ensure that the public arrives at an accurate understanding of climate change, when the «sound bite» limits on our speaking time to the media force us to choose between making a few points with all the appropriate caveats, vs presenting details of all the points we believe important but without acknowledging uncertaclimate change, when the «sound bite» limits on our speaking time to the media force us to choose between making a few points with all the appropriate caveats, vs presenting details of all the points we believe important but without acknowledging uncertainties?

Indeed, one of the findings in the recent paper by Overpeck et al. (this weeks Science), is that even as the Greenland ice sheet melts faster than originally expected, it still won't provide sufficient meltwater forcing of the North Atlantic circulation (which is the feature of the climate system most commonly implicated in the discussion of «tipping points») to force any sort of threshold change.

Results from climate models driven by estimated radiative forcings for the 20th century (Chapter 9) suggest that there was little change prior to about 1915, and that a substantial fraction of the early 20th - century change was contributed by naturally occurring influences including solar radiation changes, volcanism and natural variability.

I think you and others could do more to change attitudes in the U.S. on global warming by joining forces in putting pressure on NOAA administrators and NWS supervisors to educate the 5,500 meteorologists in 120 National Weather Service offices so the NWS scientists can help other government people and other meteorologists who enter people's private living rooms better understand 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.

[Response: A similar conclusion to the one cited by Gavin above was reached independently by a panel of scientists (of which I was a member) convened to report on these issues by the National Academy of Sciences last year, resulting in the NAS report «Radiative Forcing of Climate Change: Expanding the Concept and Addressing Uncertainties (2005)».

We have a climate change adaptation task force shared by the Office of Science and Technology Policy, Council on Environmental Quality, and the National Oceanographic and Atmospheric Administration.

On p. 336: 271 Abrupt change from wet to dry in the Sahara (at least, as measured by offshore dust) as the summer sun gradually changes: Peter B. deMenocal, J. Ortiz, T. Guilderson, J. Adkins, M. Sarnthein, L. Baker, and M. Yarusinsky, «Abrupt onset and termination of the African Humid Period: Rapid climate responses to gradual insolation forcing,» Quaternary Science Review 19: 347 - 361 (2000).

All the natural forcings can change the Earth's climate — looking at the record as it's teased out by researchers, there's a huge number of different things that seem to affect climate at one time or another.

A: Climate changes observed over recent decades are inconsistent with trends caused by natural forces but are totally consistent with the increase in human - induced heat - trapping gases.

Methods: To understand the effects of economic forces from climate policy on terrestrial carbon and land use changes, the researchers used the MiniCAM, an integrated assessment model developed by the PNNL team over the last two decades, to compare different scenarios.

The 1976 — 1977 climate shift occurred along with a phase shift of the PDO, and a concurrent change in the ocean (Section 3.6.3) that appears to contradict the Lindzen and Giannitsis (2002) assumption that the change was initiated by tropospheric forcing.

Let's set the stage by noting that, as a significant competitor to anthropogenic greenhouse forcing of recent climate change, the direct radiative forcing by solar irradiance variations is dead on arrival.

However, in view of the fact that cloud feedbacks are the dominant contribution to uncertainty in climate sensitivity, the fact that the energy balance model used by Schmittner et al can not compute changes in cloud radiative forcing is particularly serious.

Wigley et al. (1997) pointed out that uncertainties in forcing and response made it impossible to use observed global temperature changes to constrain ECS more tightly than the range explored by climate models at the time (1.5 °C to 4.5 °C), and particularly the upper end of the range, a conclusion confirmed by subsequent studies.

These orbital variations, which can be calculated from astronomical laws (Berger, 1978), force climate variations by changing the seasonal and latitudinal distribution of solar radiation (Chapter 6).

The detailed temporal and geographical response of the climate system to the rapid human - made change of climate forcings is not well - constrained by empirical data, because there is no faithful paleoclimate analog.

Earth's measured energy imbalance has been used to infer the climate forcing by aerosols, with two independent analyses yielding a forcing in the past decade of about − 1.5 W / m2 [64], [72], including the direct aerosol forcing and indirect effects via induced cloud changes.

The long - term global warming trend is predominantly a forced climate change caused by increased human - made atmospheric gases, mainly CO2 [1].

Developed by Related Designs in collaboration with Blue Byte, Anno 2070 takes place in a near - future environment where climate change has forced humanity to adapt to rising sea levels that have left stretches of once - fertile land completely inhospitable.

In a near - future wracked by climate change, Junie Wye is an urbane, sassy 17 - year - old forced to move from her big city to a divided desert town.

Response: < / b > von Storch et al purport to test statistical methods used to reconstruct past climate patterns from «noisy» proxy data by constructing false proxy records («pseudoproxy» records) based on adding noise to model gridbox temperature series taken from a climate simulation forced with estimated past radiative forcing changes.

However, effec - tive communication with the public of the urgency to stem human - caused climate change is hampered by the inertia of the climate system, especially the ocean and the ice sheets, which respond rather slowly to climate forcings, thus allow - ing future consequences to build up before broad public con - cern awakens.

Indeed, one of the findings in the recent paper by Overpeck et al. (this weeks Science), is that even as the Greenland ice sheet melts faster than originally expected, it still won't provide sufficient meltwater forcing of the North Atlantic circulation (which is the feature of the climate system most commonly implicated in the discussion of «tipping points») to force any sort of threshold change.

Could the climate forcing itself, such as increasing GHGs, affect parameterizations independently of the larger scale climate changes (for example, by changing thermal damping of various kinds of waves, or by changing the differences of radiative effects between different amounts and kinds of clouds)?

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.

While the local, seasonal climate forcing by the Milankovitch cycles is large (of the order 30 W / m2), the net forcing provided by Milankovitch is close to zero in the global mean, requiring other radiative terms (like albedo or greenhouse gas anomalies) to force global - mean temperature change.

The anticipated doubling of the sub-Saharan population in Africa by 2050 means doubled exposure to even today's climate risks, let alone what may come from greenhouse - forced changes.

The recent paper by Kate Marvel and others (including me) in Nature Climate Change looks at the different forcings and their climate responses over the historical period in more detail than any previous modelingClimate Change looks at the different forcings and their climate responses over the historical period in more detail than any previous modelingclimate responses over the historical period in more detail than any previous modeling study.

In fact, these past climate changes allow us to learn how sensitive the earth's climate system is to the known radiative forcing that we are producing by increasing the levels of greenhouse gases in the atmosphere.

[Response: I suspect another common confusion here: the abrupt glacial climate events (you mention the Younger Dryas, but there's also the Dansgaard - Oeschger events and Heinrich events) are probably not big changes in global mean temperature, and therefore do not need to be forced by any global mean forcing like CO2, nor tell us anything about the climate sensitivity to such a global forcing.