Sentences with phrase «other land cover changes»

«This study is one of the first to quantitatively examine the loss of forested areas and other land cover changes in savanna environments,» said Richard Yuretich, program director for the National Science Foundation's Dynamics of Coupled Natural and Human Systems Program, which funded the research.

Not exact matches

The locations of weather stations, changes in instruments, the siting of weather stations in warmer urban areas, changes in land cover and other issues have all been cited as issues affecting the temperature trends often used to show that our planet is in fact warming.

To inform its Earth system models, the climate modeling community has a long history of using integrated assessment models — frameworks for describing humanity's impact on Earth, including the source of global greenhouse gases, land use and land cover change, and other resource - related drivers of anthropogenic climate change.

Temperature and other climate changes in open expanses, such as the Amazon basin or Sahara Desert, will cover broader swaths of land than steep peaks, meaning that «large geographic displacements are required to change temperature appreciably,» wrote the researchers.

Leaving aside the collapse of the Larsen - B ice shelf and other ice shelves in Antarctica, is it too simplistic to expect that dramatic changes should be anticipated first in the Arctic because it is sea covered by a few meters of sea ice and therefore more susceptible to change, in comparison to Antarctica (which is obviously land covered by glacial ice up to several kilometers thick in places)?

However GBM has an interest and knowledge in other components of the overall plan and will be following developments in the other working groups, especially around land use and management, and land cover change.

Leaving aside the collapse of the Larsen - B ice shelf and other ice shelves in Antarctica, is it too simplistic to expect that dramatic changes should be anticipated first in the Arctic because it is sea covered by a few meters of sea ice and therefore more susceptible to change, in comparison to Antarctica (which is obviously land covered by glacial ice up to several kilometers thick in places)?

Has your area industrialized or had other changes in land cover and land use in 40 years?

Combustion of coal, oil, and natural gas, and to a lesser extent deforestation, land - cover change, and emissions of halocarbons and other greenhouse gases, are rapidly increasing the atmospheric concentrations of climate - warming gases.

The 2009 State of the Climate Report of the US National Oceanic and Atmospheric Administration (NOAA) tells us that climate change is real because of rising surface air temperatures since 1880 over land and the ocean, ocean acidification, sea level rise, glaciers melting, rising specific humidity, ocean heat content increasing, sea ice retreating, glaciers diminishing, Northern Hemisphere snow cover decreasing, and so many other lines of evidence.

You seem to accept that the radiative effect of the added CO2 will emerge as the dominant climate change forcing, yet other human forcings, such as due to land use / land cover change are emerging as possibly larger effects.

However GBM has an interest and knowledge in other components of the overall plan and will be following developments in the other working groups, especially around land use and management, and land cover change.

We also report on the respondents» views on other factors contributing to global warming; of these Land Use and Land Cover Change (LULCC) was considered the most important.

Deforestation, the growth of forests, and other changes in land cover could produce local temperature changes comparable to those caused by greenhouse gases according to new simulations from the National Center for Atmospheric Research (NCAR).

Land cover and land use change may have an impact on the surface albedo, evapotranspiration, sources and sinks of heat - trapping gases (greenhouse gases), or other properties of the climate system and may thus have a radiative forcing and / or other impacts on climate, locally or globaLand cover and land use change may have an impact on the surface albedo, evapotranspiration, sources and sinks of heat - trapping gases (greenhouse gases), or other properties of the climate system and may thus have a radiative forcing and / or other impacts on climate, locally or globaland use change may have an impact on the surface albedo, evapotranspiration, sources and sinks of heat - trapping gases (greenhouse gases), or other properties of the climate system and may thus have a radiative forcing and / or other impacts on climate, locally or globally.

Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence of oxygen releases additional methane.116 Extensive wildfires also release carbon that contributes to climate warming.107, 117,118 The capacity of the Yukon River Basin in Alaska and adjacent Canada to store carbon has been substantially weakened since the 1960s by the combination of warming and thawing of permafrost and by increased wildfire.119 Expansion of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption of the sun's energy and further contributing to warming.120 This warming is likely stronger than the potential cooling effects of increased carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow - covered seasons in Alaska further increase energy absorption by the land surface, an effect only slightly offset by the reduced energy absorption of highly reflective post-fire snow - covered landscapes.121 This spectrum of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts by society to use ecosystem carbon management to offset fossil fuel emissions.94, 95,96

Vegetation cover changes caused by land use can alter regional and global climate through both biogeochemical (emissions of greenhouse gases and aerosols) and biogeophysical (albedo, evapotranspiration, and surface roughness) feedbacks with the atmosphere, with reverse effects following land abandonment, reforestation, and other vegetation recoveries (107).

Other potential causes of climate change include the depletion of stratospheric ozone in recent decades, again through human activities, and global changes in the surface reflectivity — or albedo — of the planet, as we modify the patterns of vegetation that cover the land.

I've heard some of the most ridiculous claims by climate change advocates about how we're all going to be dead in a decade or two, how we'll see the oceans rise to cover almost all the land masses and other extreme nonsense.

The continued shrinkage of thaw ponds could bring significant changes to local ecosystems, as spruce forest is likely to supplant tundra as the dominant land cover.14, 20 This could lead to a northward advance of some species of plants and other trees, while leaving resident vegetation more vulnerable to early mortality — potentially further disrupting the climate.14, 20,21

The importance of land use / land cover change in the context of policy responses to the human involvement in the climate system has not been adequately recognized in the IPCC and other climate assessments.

Richard Betts - You write: «There's quite a few things to consider which make it more complicated (one which particularly interests me is the RF due to land cover change and also other non-radiative effects of land cover change on temperature).»

Ken Caldeira has been a Carnegie investigator since 2005 and is world renowned for his modeling and other work on the global carbon cycle; marine biogeochemistry and chemical oceanography, including ocean acidification and the atmosphere / ocean carbon cycle; land - cover and climate change; the long - term evolution of climate and geochemical cycles; climate intervention proposals; and energy technology.

There's quite a few things to consider which make it more complicated (one which particularly interests me is the RF due to land cover change and also other non-radiative effects of land cover change on temperature).

Terra - i was developed to monitor the changes in land cover every 16 days, and covering quadrants as small as every 250 meters, in order to help conservation organizations and governments track trends in deforestation from logging and other human activities.