Sentences with phrase «vegetation area changes»

Not exact matches

So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where rainfall happens is going to shift.

The results suggest that climate change will convert much of the area currently occupied by temperate grasslands and deserts to subtropical vegetation with effects on associated wildlife and human populations.

Given the inverse relationship observed between their values, it has been possible to determine the additional area of vegetation needed (in this case of green roofs) necessary to reduce the temperature by the same amount as it is predicted to rise in different climate change models for Seville.

This heat map shows the areas of the United States where the soil microbial biomass is susceptible to changes in vegetation cover.

The silicate + CO2 - > different silicate + carbonate chemical weathering rate tends to increase with temperature globally, and so is a negative feedback (but is too slow to damp out short term changes)-- but chemical weathering is also affected by vegetation, land area, and terrain (and minerology, though I'm not sure how much that varies among entire mountain ranges or climate zones)-- ie mountanous regions which are in the vicinity of a warm rainy climate are ideal for enhancing chemical weathering (see Appalachians in the Paleozoic, more recently the Himalayas).

We call this the Charney climate sensitivity, because it is essentially the case considered by Charney (1979), in which water vapor, clouds and sea ice were allowed to change in response to climate change, but GHG (greenhouse gas) amounts, ice sheet area, sea level and vegetation distributions were taken as specified boundary conditions.

[Response: Changes in vegetation as a response to warming as seen by satellites over the same areas are obviously caused by former - USSR apparatchiks painting the ground green.]

Caribou and reindeer could lose foraging areas as warming changes vegetation on the tundra.

Far more certainly there will be changes in surface reflectivity; changes in snow and ice cover, open water area, regions of desert, vegetation patterns etc..

The fast response from oceans and vegetation (opposite to each other) leads to a change of about 3 ppmv / °C, while the long term response (including ice sheet / vegetation surface area and - deep - ocean current changes) is about 8 ppmv / °C.

Reactions on longer time frames (about 50 years LIA, 600 years glacial - interglacial, many thousands of years interglacial - glacial) involves (deep) ocean temperatures, ocean current changes, vegetation / land ice area changes,...

The fires, which have increased 350 % over the same period in 2009, have devastated large areas of some Cerrado national parks, threaten to cause large scale changes to vegetation cover and are being reflected in a marked rise in respiratory complaints in the human population.

It registers change in all forest and woodland areas that have lost at least 40 percent of their green vegetation cover over the past year.

About half the areas will see vegetation change, and areas currently populated by shrubs may find woody trees taking their place.

Biological carbon storage in vegetation, soils, trees, and aquatic areas got a boost from the White House, the private sector, and the American Forest Foundation, which announced programs to make natural systems more resilient to climate change, aid plants in capturing carbon, and incorporate natural systems into infrastructure design.

Even if we stopped emitting greenhouse gases today, fire conditions will become even more persistent in areas already at risk, and will spread to new regions as warming drives vegetation patterns and land - use changes.

Trend assessments based on C3S satellite soil moisture should be treated with caution owing to dataset properties changing over time, and the inability to observe beneath dense vegetation, for mountain areas, or frozen or snow - covered soils.

A big reason for the difference in climate between urban and rural areas is the change of the surface from vegetation to impervious surfaces like asphalt or concrete.

States that other feedbacks likely to emerge are those in which key processes include surface fluxes of trace gases, changes in the distribution of vegetation, changes in surface soil moisture, changes in atmospheric water vapor arising from higher temperatures and greater areas of open ocean, impacts of Arctic freshwater fluxes on the meridional overturning circulation of the ocean, and changes in Arctic clouds resulting from changes in water vapor content

Even though correlations for the Southern US / Mexico area average are low, we observe a sign change in the correlation between vegetation and fire for positive (fire lags) versus negative lags (fire leads).

While NASA says sea ice probably won't set any records this year, we have this horrible news: Sea ice decline spurs the greening of the Arctic Sea ice decline and warming trends are changing the vegetation in nearby arctic coastal areas, according to two University of Alaska Fairbanks scientists.

-- Other processes are very slow in change: vegetation area increase / decrease, ocean overturning rate, rock weathering,..

Albedo change due to LGM — Holocene vegetation change, much of which is inherent with ice sheet area change, and albedo change due to coastline movement are lumped together with ice sheet area change in calculating the surface albedo climate forcing.

Once started, that is a self fulfilling, rapid transition, even without any further help of CO2, until the change in ice / vegetation area is too small to induce more albedo / temperature change.

Officials from the Department of Environment and Climate Change carried out tests and found the area had been mysteriously polluted, one theory being that nearby vegetation was sprayed with an insecticide and it accidentally spread.

Unless the land use changes are permanently away from vegetation, as in paving a large area, the net carbon emissions are zero since whatever gets removed will grow back and thus consume the excess CO2.

If substantial areas of the Amazon are in a climate regime close to the savanna - rainfall threshold, which diverse evidence suggests they are, then there may be a vegetation shift if rainfall consistently decreases in the future due to climate change.