Sentences with phrase «reduced rainfall increases»

Not exact matches

«If rainfall across the Murray Darling Basin reduces over summer, allocation prices are likely to increase,» Mr Delves says, «However if a wet summer is experienced, then we are in for continued low volumes of allocation trade and lower prices.»

In fact, increasing levels of CO2 in the atmosphere — now roughly 392 parts per million and rising — may be fertilizing the rainforest and preventing even greater impacts from reduced rainfall, although this question, Davidson and his colleagues wrote in the review, «may be one of the largest unknowns for the future of the Amazon forests.»

• One is that the cold air above the Laurentide Ice Sheet created a tremendous high pressure system that shifted the polar jet stream to the south, pushing the track followed by winter storms down into the Southwest, which had the effect of dramatically reducing the amount of rainfall in the Northwest while increasing it in the Southwest.

Deforestation can reduce rainfall over a wide region, even as it spurs increased rainfall in the immediate area where that deforestation took place.

As more vegetation was removed by the introduction of livestock, it increased the albedo (the amount of sunlight that reflects off the earth's surface) of the land, which in turn influenced atmospheric conditions sufficiently to reduce monsoon rainfall.

What this means for the future is difficult to predict: rainfall is projected to increase, as is temperature, both of which lead to more methane emissions, but some models predict a drying out of soils which would reduce said emissions... I guess we'll find out.

What this means for the future is difficult to predict: rainfall is projected to increase, as is temperature, both of which lead to more methane emissions, but some models predict a drying out of soils which would reduce said emissions... I guess we'll find out.

[1] CO2 absorbs IR, is the main GHG, human emissions are increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders increase the amplitude and duration of blocking highs, increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)

This occurs mainly as a function of increased rainfall in the region which strengthens the ocean layering and reduces the amount of convection in the region.

Sulfate aerosol is a health hazard, limits visibility, degrades buildings, reflects solar radiation (cooling the climate) and also impacts cloud properties (increasing their lifetime and reducing rainfall).

Indeed, pervious studies have tied increases in the C14 in tree rings, and hence reduced solar irradiance, to Holocene glacial advances in Scandinavia, expansions of the Holocene Polar Atmosphere circulation in Greenland; and abrupt cooling in the Netherlands about 2700 years ago... Well dated, high resolution measurements of O18 in stalagmite from Oman document five periods of reduced rainfall centered at times of strong solar minima at 6300, 7400, 8300, 9000, and 9500 years ago.»

Preliminary results of an analysis of rising temperature effects on three major river systems in the western United States — the Columbia, the Sacramento, and the Colorado — indicate that the winter snow pack in the mountains feeding them will be dramatically reduced and that winter rainfall and flooding will increase.

In the Southwest, climate change would likely cause reduced rainfall and increased temperatures that will evaporate more water from the soil.

The AMV warming also leads to reduced rainfall over the western part of the US and Mexico and to a weak increase in rainfall over Europe during boreal winter (see figure).

Observational data, evidence from field experiments, and quantitative modeling are the evidence base of the negative effects of extreme weather events on crop yield: early spring heat waves followed by normal frost events have been shown to decimate Midwest fruit crops; heat waves during flowering, pollination, and grain filling have been shown to significantly reduce corn and wheat yields; more variable and intense spring rainfall has delayed spring planting in some years and can be expected to increase erosion and runoff; and floods have led to crop losses.4, 5,6,7

The ancients also understood that trees can increase rainfall and deforestation can reduce it.

To date the impacts have all been beneficial, the Sahara has became greener with increased rainfall, tornado's have reduced and food supply has grown.

Results show that the mean rainfall (temperature) significantly reduces (increases) over the region when...

These include potential flood damages from more extreme rainfall in most parts of Australia and New Zealand; constraints on water resources from reducing rainfall in southern Australia; increased health risks and infrastructure damages from heat waves in Australia; and, increased economic losses, risks to human life and ecosystem damage from wildfires in southern Australia and many parts of New Zealand.

In particular, in the European Mediterranean region, increases in the frequency of extreme climate events during specific crop development stages (e.g., heat stress during flowering period, rainy days during sowing time), together with higher rainfall intensity and longer dry spells, are likely to reduce the yield of summer crops (e.g., sunflower).

In addition to direct crop damage from increasingly intense precipitation events, wet springs can delay planting for grain and vegetables in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall events have increased more than in any other region of the country (Ch.

Other research suggests that higher temperatures could trigger a feedback effect whereby emissions from forests will increase due to reduced rainfall and increased incidence of fire and tree - killing pest outbreaks.

This variously had two objectives: increase rainfall or reduce damaging hailstorms.

Critics contend these climate geoengineering approaches are risky and could kill marine life, stall plant growth, damage the ozone layer, and reduce rainfall while increasing warming in other areas.

Under extreme deforestation scenarios, disappearance of the Amazon rainforest would reduce rainfall in the American Midwest, Northwest and South at key growing times, while increasing winter precipitation along the eastern seaboard.

Increased frequency of 1.2 mm summer rainfall events reduced moss cover from ~ 25 % of total surface cover to < 2 % after only one growing season, whereas increased temperature had nIncreased frequency of 1.2 mm summer rainfall events reduced moss cover from ~ 25 % of total surface cover to < 2 % after only one growing season, whereas increased temperature had nincreased temperature had no effect.

Thus, forest clearing would reduce dry season rainfall, increase fire risk, and possibly delay wet season onset (Gash and Nobre, 1997; Fu and Li, 2004, Costa and Pires, 2010).

For example, increased rainfall during a shorter period in winter still could lead to reduced levels in summer in river flows, lakes, wetlands, and thus in freshwater fisheries.

The Indian Institute for Tropical Meteorology, which has a centre for climate change, has found that monsoon rainfall has reduced in states such as Chhattisgarh, Madhya Pradesh, Himachal Pradesh and Kerala whereas it has increased in Uttar Pradesh, West Bengal and Jammu amd Kashmir.

This guidance document underscores that: poor people are already at risk from climate - related shocks, including crop failures from reduced rainfall, food prices spikes after extreme weather events, and increased incidence of diseases following heat waves and floods.

Warmer temperatures also increase evaporation in soil, which affects plant life and can reduce rainfall even more.

It is also likely that the frequency of heavy rainfall will increase over many areas of the globe... In Australia and around the world we need to urgently invest in clean energy sources and take other measures to reduce emissions of greenhouse gases.

The study, based on a computer model used to simulate rainfall under different land - use conditions, found that cutting down tropical forests in West Africa reduces precipitation over neighboring forest areas by about 50 percent due to increased temperatures over cropland areas.

«If rainfall is reduced even further as a result of deforestation, it could threaten the survival of the remaining forest by increasing the trees» sensitivity to drought.»

We are suffering terrible climate change damage — consider the decline in run - off in the Murray Basin, rising temperatures, increasing frequency and violence in extreme weather events, increased ferocity of bushfires and length of the fire danger season, increasing acidity of the oceans and rise in sea levels, the decline in rainfall in the southern half of the country, the damage to the Great Barrier Reef, etc. — we should reduce our CO2 production levels for our own benefit.