Sentences with phrase «more global rainfall»

Not exact matches

Growing scarcity In addition to a growing scarcity of natural resources such as land, water and biodiversity «global agriculture will have to cope with the effects of climate change, notably higher temperatures, greater rainfall variability and more frequent extreme weather events such as floods and droughts,» Diouf warned.

There are more than a dozen widely used global climate models today, and despite the fact that they are constantly being upgraded, they have already proved successful in predicting seasonal rainfall averages and tracking temperature changes.

The reason is that global warming is likely to increase droughts and change rainfall patterns, so water availability becomes even more critical than before.

Scientific research suggests that global warming causes heavier rainfall because a hotter atmosphere can hold more moisture and warmer oceans evaporate faster feeding the atmosphere with more moisture.

Events like record - setting heat, extreme rainfall and drought will happen more frequently around the world even if global climate targets are met, new research suggests.

However, as the other indicators of 2016 prove, there are many more measures of the climate than global temperatures: from local extremes of temperature and rainfall to an unexpected drop in Antarctic sea ice.»

But the global - mean rainfall is thermodynamically constrained to increase more slowly, so we expect a general tendency to increased drought as well.

Most of the focus has been on the global mean temperature trend in the models and observations (it would certainly be worthwhile to look at some more subtle metrics — rainfall, latitudinal temperature gradients, Hadley circulation etc. but that's beyond the scope of this post).

Global temperatures have increased by ∼ 0.2 °C per decade over the last three decades16, possibly leading to an acceleration of the global water cycle with more intense rainfall events17, more severe and widespread droughts18 (despite drought frequencies appearing unchanged19) and regional humidity variatiGlobal temperatures have increased by ∼ 0.2 °C per decade over the last three decades16, possibly leading to an acceleration of the global water cycle with more intense rainfall events17, more severe and widespread droughts18 (despite drought frequencies appearing unchanged19) and regional humidity variatiglobal water cycle with more intense rainfall events17, more severe and widespread droughts18 (despite drought frequencies appearing unchanged19) and regional humidity variations20.

«Climate records back to Viking times show the 20th century was unexceptional for rainfall and droughts despite assumptions that global warming would trigger more wet and dry extremes, a study showed on Wednesday.

SINGAPORE, March 25 (Reuters)-- Global warming is more than a third to blame for a major drop in rainfall that includes a decade - long drought in Australia and a lengthy dry spell in the United States, a scientist [Peter Baines] said on Wednesday.

The increase in rainfall intensity (shift in distribution of rain from more light events to fewer heavy events) as a consequence of global warming is a robust feature of GCMs.

1) it is the first time a global model that, while more expensive than conventional GCMs, is affordable for climate projection has been shown to contain the essential mechanism known to deliver most of the summertime mid-continent US rainfall, and

Most of the focus has been on the global mean temperature trend in the models and observations (it would certainly be worthwhile to look at some more subtle metrics — rainfall, latitudinal temperature gradients, Hadley circulation etc. but that's beyond the scope of this post).

Rainfall observations tend to be longer and therefore more appropriate for such tests, but, such an analysis has not yet been done on a global scale to my knowledge.

These assumed that the largest decreases in rainfall would be in winter and spring (decreases of 5 % and 11 % between 1990 and 2030 on the low and high global warming scenarios respectively), but rainfall was fractionally HIGHER in winter / spring in the more recent period (1995 - 2006) than in the previous 11 - year period.

Since 1970 we have seen exactly what global warming models predict — more rainfall in the North - West and some desert areas and less in the major agricultural regions.

Global warming is increasing global average rainfall, but recent research by the UK Hadley Centre suggests that rainfall is becoming more spatially variable on a global Global warming is increasing global average rainfall, but recent research by the UK Hadley Centre suggests that rainfall is becoming more spatially variable on a global global average rainfall, but recent research by the UK Hadley Centre suggests that rainfall is becoming more spatially variable on a global global basis.

The U.S. Global Change Research Program found that if emission rates continue unchanged the U.S. is likely to experience stronger coastal storm surges and more frequent extreme rainfall events.

«In summary, the current assessment concludes that there is not enough evidence at present to suggest more than low confidence in a global - scale observed trend in drought or dryness (lack of rainfall) since the middle of the 20th century.»

A change in local rainfall may affect human society more than a change in global temperature, so we should beware of equating the size of the projected global warming with the potential seriousness of the climate change problem.

This in turn may mean that something other than global temperature - for example, rainfall - has changed much more in X than in Y.

Posted in Climatic Changes in Himalayas, Disaster and Emergency, Disasters and Climate Change, Ecosystem Functions, Environment, Glaciers, Global Warming, Health and Climate Change, Information and Communication, International Agencies, Lessons, Nepal, News, Opinion, Population, Rainfall, River, Vulnerability, Water Comments Off on Nepal: Country At The Top Of The World Has Had More Than Fair Share Of Tragedies

Posted in Development and Climate Change, Ecosystem Functions, India, Information and Communication, Lessons, News, Rainfall, Resilience, Vulnerability, Weather Comments Off on Indian Monsoon Failure More Frequent With Global Warming, Research Suggests

One thing that does seem clear is that warmer oceans (a la global warming) mean more evaporation, and that likely leads to storms with more and more dangerous rainfall of the kind we saw with Hurricane Irene last year.

Posted in Agriculture, Capacity Development, Development and Climate Change, Ecosystem Functions, Environment, Global Warming, Land, Lessons, Mitigation, News, Opinion, Rainfall, Vulnerability, Water, Weather Comments Off on Will Climate Change Lead To More Droughts?

Drought is expected to occur 20 - 40 percent more often in most of Australia over the coming decades.6, 18 If our heat - trapping emissions continue to rise at high rates, 19 more severe droughts are projected for eastern Australia in the first half of this century.6, 17 And droughts may occur up to 40 percent more often in southeast Australia by 2070.2 Unless we act now to curb global warming emissions, most regions of the country are expected to suffer exceptionally low soil moisture at almost double the frequency that they do now.3 Studies suggest that climate change is helping to weaken the trade winds over the Pacific Ocean, with the potential to change rainfall patterns in the region, including Australia.20, 21,16,22

The dramatic decline in Arctic sea ice and snow is one of the most profound signs of global warming and has coincided with «a period of ostensibly more frequent events of extreme weather across the mid-latitudes, including extreme heat and rainfall events and recent severe winters,» according to the conference organizers, who are posting updates under the #arctic17 hashtag on Twitter.

Though a 1 C rise in global temperature may not tell us anything about global climate - temperature is not really something which effect humans or life, whereas patterns rainfall, would be more relevant than average global temperature.

The report says global climate change is projected to produce «insufficient water supplies, shifting rainfall patterns, disruptions to agriculture, human migrations, more failing states, increased extremism, and even resource wars,» all of which pose an urgent threat that must be addressed in national security policy.

More information: Jeff R Knight et al, Global meteorological influences on the record UK rainfall of winter 2013 — 14, Environmental Research Letters (2017).

Warm air holds more moisture, and global warming is already increasing the odds of extreme rainfall.

This is because global warming will decrease rainfall in some areas but serendipitously increase it in other, but more populated, areas.

They estimate that Harvey's rainfall was probably almost 19 percent higher due to global warming, which also means the probability of a storm of Harvey's size is now 3.5 times more likely.

The region locks up more than 100 billion tons of carbon — more than 11 years» worth of total greenhouse gas emissions from human activities; plays an important role in global weather circulation patterns, including delivering rainfall to Central America, the United States, and southern South America; supports perhaps a third of terrestrial biodiversity; and is home to the bulk of the world's remaining indigenous people still living in traditional ways.

Answers for the human species often involve the global warming problem, as the water evaporates, but this can create more rainfall in a few areas.

One is that, as regional climates change in response to ever - increasing combustion of fossil fuels, which then intensify the greenhouse gas ratios in the global atmosphere, cities in now - arid regions will suffer ever more severe heatwaves, even though their rural hinterlands may enjoy higher rainfall.

The sulfates would slow or reverse the recovery of the ozone layer; they might also reduce global rainfall, and the rain that did fall would be more acidic.

In fact, scientists generally agree that global warming will ensure diminished rainfall and ever more frequent droughts over much of Africa and the Middle East.

A new study alleges that human - induced global warming is a fundamental cause behind the 7.1 trillion gallons of torrential rainfall that a storm dumped on Louisiana in August, leading to a flooding disaster that killed at least 13 people and caused more than $ 1 billion in damage.

Rainfall is expected to become more intense as global temperatures continue to rise, but how the duration...

Drier conditions resulting from suppressed rainfall can induce more dust and smoke due to the burning of drier vegetation (Ramanathan et al., 2001), thus affecting both regional and global hydrological cycles (Wang, 2004).

the current assessment concludes that there is not enough evidence at present to suggest more than low confidence in a global - scale observed trend in drought or dryness (lack of rainfall) since the middle of the 20th century, owing to lack of direct observations, geographical inconsistencies in the trends, and dependencies of inferred trends on the index choice.

Even the Daily Mail Online said: «Prof Collins made clear that he believes it is likely global warming could lead to higher rainfall totals, because a warmer atmosphere can hold more water.»

Although we can not say at present whether more or fewer hurricanes will occur in the future with global warming, the hurricanes that do occur near the end of the 21st century are expected to be stronger and have significantly more intense rainfall than under present day climate conditions.

That's doubly true when there is also emerging evidence — documented by Senior Weather Channel meteorologist Stu Ostro and others — that «global warming is increasing the atmosphere's thickness, leading to stronger and more persistent ridges of high pressure, which in turn are a key to temperature, rainfall, and snowfall extremes and topsy - turvy weather patterns like we've had in recent years.»

There are corollary benefits: - «Organic agriculture's use of compost and crop diversity means it will also be able to better withstand the higher temperatures and more variable rainfall expected with global warming».

If the emissions that cause global warming continue unabated, scientists expect the amount of rainfall during the heaviest precipitation events across country to increase more than 40 percent by the end of the century.

Statistical analysis of rainfall data from 1901 to 2010, derived from thousands of weather stations around the globe, shows that from 1980 to 2010 there were 12 % more of these intense events than would be expected in a climate without global warming.

Logic says that with more water evaporated, while global warming may cause now local draughts, overall rainfall should increase.