Sentences with phrase «global droughts occurred»

In 2012, 70 percent of major global droughts occurred in Africa.

Not exact matches

The researchers also looked at other extreme events, like the southeast Australian drought of 2006 and the rain events that led to widespread flooding in Queensland in 2010, to see whether they would occur more often as global temperatures increased.

However, it says the observed changes in fire activity are in line with long - term, global fire patterns that climate models have projected will occur as temperatures increase and droughts become more severe in the coming decades due to global warming.

Increased heating from global warming may not cause droughts but it is expected that when droughts occur they are likely to set in quicker and be more intense.

Prof Peirs Forster (Univ of Leeds, UK; IPCC lead author) led a 2012 study of the probability of extreme drought across Asia, in which this was found to be liable to occur within 10 years on a scale potentially threatening global food security.

«We also present a set of global vulnerability drivers that are known with high confidence: (1) droughts eventually occur everywhere; (2) warming produces hotter droughts; (3) atmospheric moisture demand increases nonlinearly with temperature during drought; (4) mortality can occur faster in hotter drought, consistent with fundamental physiology; (5) shorter droughts occur more frequently than longer droughts and can become lethal under warming, increasing the frequency of lethal drought nonlinearly; and (6) mortality happens rapidly relative to growth intervals needed for forest recovery.

Whatever the cause — global hydrological and climate variability — extreme drought, extreme floods and extreme temperature changes such as has not been seen in the past century — will occur again.

Climatologist and lead author Colin Kelley notes in an article he cowrote for the International Peace Institute, «three of the four most severe multiyear droughts in Syria's observed record occurred during the last 30 years, when the rate of global carbon emissions has seen its largest increase.»

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

If after five years of filtered sunlight a disaster occurred — a drought in India and Pakistan, for example, a possible effect in one of the modeling studies — we would not know whether it was caused by global warming, the solar filter or natural variability.

In its latest assessment of the progress of climate change, the body said: «If warming is not kept below two degrees centigrade, which will require the strongest mitigation efforts, and currently looks very unlikely to be achieved, the substantial global impacts will occur, such as species extinctions, and millions of people at risk from drought, hunger, flooding.»

A (2) Modern warming, glacier and sea ice recession, sea level rise, drought and hurricane intensities... are all occurring at unprecedentedly high and rapid rates, and the effects are globally synchronous (not just regional)... and thus dangerous consequences to the global biosphere and human civilizations loom in the near future as a consequence of anthropogenic influences.

When major volcanic eruptions do not occur for decades to hundreds of years, the atmosphere can oxidize all pollutants, leading to a very thin atmosphere, global cooling and decadal drought.

Scientists project that extreme weather events, such as heat waves, droughts, blizzards and rainstorms will continue to occur more often and with greater intensity due to global warming, according to Climate Central.

Even normally occurring droughts have begun to be made more severe by rising global temperatures and climate changes.

The real fallacy is thinking we can «do something about it» an event that occurs naturally - global cooling, global warming, regional cooling, regional warming, drought, monsoon, etc..

It is also widely agreed that the world has seen a spate of extreme heat events in recent years, such as the 2011 Texas heat wave and drought and the deadly 2010 heat wave in Russia, and that global warming made some of these events more likely to occur and more severe.

This reduction of sunlight further amplifies the currently occurring global droughts.

February 2006: Drought in England: Interesting that the drought of note (1976) should have occurred at the end of the period of cooling that caused such global angst.

This does not mean, of course, that droughts haven't occurred in North America over the last 100 years, but it doesn't support a link between rising global temperature and increased drought.