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European Heat, Drought, Fires Bite Deep as 1 Million Impacted by Water Rationing in Rome

“This year was not bad, it was catastrophic. I can’t remember a year like this since 1992 when I was a little child,”Joaquin Antonio Pino, a cereal farmer in Sinlabajos, Avila.

“We will see a lot more surprises and fires burning in places that don’t have a fire history. We’ll see more fires and more intense fires in the Mediterranean and new fire situations in countries that don’t really expect it.” — Alexander Held, a senior expert at the European Forest Institute.

“Rome faces eight hours a day without running water after a halt was ordered on pumping water from a nearby lake.” — BBC.

(Europe — sweltering under heat and drought — is blanketed by triple the typical number of wildfires during July of 2017. Image date is July 17. Bottom edge of frame is approximately 2,500 miles. Image source: NASA Worldview.)

Water Rationing in Rome

According to reports from BBC, Reuters, and The Guardian, about 1 million residents of Rome are now facing 8 hour periods without water supplies. Across the country, lake levels are at record lows after the driest spring in 60 years followed by a series of severe European heatwaves that recent scientific research indicates was made substantially more likely by human-caused climate change due to fossil fuel burning. Drought-related reductions of water withdrawals from drying lakes are spurring these major curtailments of public water access.

Severe Crop Damage

As Romans face water rationing for the first time in modern memory, across southern Europe, farmers are reeling as olive and wheat crops are severely stressed by both drought and by temperatures that in some places have hit in excess of 40 degrees Celsius (105 F). The cost of Spanish wheat has risen more than 40 percent even as prices for Italian olives have spiked by 50 percent. Cereal crop production in both states have fallen to the lowest level in 20 years. Meanwhile, damage estimates to crops from the widespread heat and drought in Italy alone has risen to between 1 and 2.3 billion dollars.

Warming temperatures spreading northward into Europe from the Sahara as climates warm have generated widespread stress for farmers over recent years. These growers, increasingly sensitive to climate change-based stresses are, more and more often, questioning the viability of farming as a livelihood.  From Reuters:

Some see rising temperatures as a long-term trend, which threatens the viability of farming in the region.

“In this situation … you realize it’s almost impossible to keep going. You think OK, this year I will try to manage, but if the harvest is like this next year you won’t be able to cope any more,” said farmer Tocchi, who is also the local head of farmers’ group Confagricoltura.

Triple the ‘Normal’ Rate of Wildfire Burning

Heat and drought hitting water supplies and crops was also accompanied by a severe spate of wildfires raging across Italy, Croatia, Montenegro, France, Portugal, and Spain during recent weeks. Thousands have been evacuated as tens of thousands of acres burned and armies of firefighters battled blazes across numerous states. Tragically, 64 people were killed by one swiftly-moving Portugal fire during early July.

(Rates of wildfire burning were already heightened as warming intensified through Europe during 2008 through 2016. The 2017 spike, however, is triple even that already elevated level. Image source: EFFIS.)

Overall, the 677 fires igniting across Europe during 2017 is about triple that of an average year for Continent. An increased rate of burning that experts are also blaming on climate change as temperatures increase and fire seasons lengthen. From EuroNews:

Alexander Held, a senior expert at the European Forest Institute, backed Curt’s claim saying fires were starting earlier and burning for longer.

“We will see a lot more surprises and fires burning in places that don’t have a fire history,” Held told Euronews. “Spain burns, yes, but it’s not a surprise. We’ll see more fires and more intense fires in the Mediterranean and new fire situations in countries that don’t really expect it.”

Links:

NASA Worldview

BBC

Reuters

The Guardian

The Atlantic

EuroNews

Hat tip to Plaza Red

 

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With Temperatures Hitting 1.2 C Hotter than Pre-Industrial, Drought Now Spans the Globe

Jeff Goodell, an American author and editor at Rolling Stone, is noted for saying this: “once we deliberately start messing with the climate, we could inadvertantly shift rainfall patterns (climate models have shown that the Amazon is particularly vulnerable) causing collapse of ecosystems, drought, famine and more.”

We are in the process of testing that theory. In the case of drought, which used to just be a regional affair but has now gone global, Goodell appears to have been right on the money.

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According to a recent report by the World Meteorological Organization, the Earth is on track to hit 1.2 degrees Celsius hotter than pre-industrial temperatures during 2016. From sea-level rise, to melting polar ice, to extreme weather, to increasing numbers of displaced persons, this temperature jump is producing steadily worsening impacts. Among the more vivid of these is the current extent of global drought.

The Four-Year Global Drought

During El Nino years, drought conditions tend to expand through various regions as ocean surfaces heat up. From 2015 to 2016, the world experienced a powerful El Nino. However, despite the noted influence of this warming of surface waters in the Equatorial Pacific, widely expansive global drought extends back through 2013 and farther.

four-year-precipitation-anomalies-updated

(The Global Drought Monitor finds that dry conditions have been prevalent over much of the globe throughout the past four years. For some regions, like the Colorado River area, drought has already extended for more than a decade. Image source: SPEI Global Drought Monitor.)

In the above image, we see soil moisture deficits over the past 48 months. What we find is that large sections of pretty much every major continent are undergoing at least a four-year drought. Drought conditions were predicted by climate models to intensify in the middle latitudes as the world heated up. It appears that this is already the case, but the Equatorial zone and the higher latitudes are also experiencing widespread drought. If there is a detectable pattern in present conditions, it is that few regions have avoided drying. Drought is so wide-ranging as to be practically global in its extent.

Widespread Severe Impacts

These drought conditions have noted impacts.

In California alone, more than 102 million trees have died due to rising temperatures and a drought that has lasted since 2010. Of those, 62 million have perished just this year. Drought’s relationship to tree mortality is pretty simple — the longer drought lasts, the more trees perish as water stores in roots are used up. California has, so far, lost 2.5 percent of its live trees due to what is now the worst tree mortality event in the state’s history.

world-vegetative-health-index

(It’s not just California. Numerous regions around the world show plants undergoing life-threatening levels of stress. In the above map, vegetative health is shown to be moderately stressed [yellow] to severely stressed [pink] over broad regions of the world. Image source: Global Drought Information System.)

The California drought is just an aspect of a larger drought that encompasses much of the North American West. For the Colorado River area, this includes a 16-year-long drought that has pushed Lake Mead to its lowest levels ever recorded. With rationing of the river’s water supplies looming if a miraculous break in the drought doesn’t suddenly appear, states are scrambling to figure out how to manage a worsening scarcity. Meanwhile, reports indicate that cities like Phoenix will require executive action on the part of the President to ensure water supplies to millions of residents over the coming years, should conditions fail to improve.

Further east, drought has flickered on and off in the central and southern U.S. In the southeast, a flash drought has recently helped to spur an unseasonable spate of wildfires over the Smoky Mountain region. Yesterday, at Gaitlinburg, TN, raging flames fed by winds ahead of a cold front forced 14,000 people to evacuate, damaged or destroyed 100 homes, and took three lives.

siberian-wildfires-july-2016

(Siberian wildfires burning on July 23, 2016 occur in the context of severe drought. Image source: LANCE MODIS.)

In the upper northern latitudes, the primary upshot of drought has also been wildfires. Wildfires are often fanned by heat and drought in heavily forested regions that see reduced soil moisture levels. Thawing permafrost and reduced snow cover levels exacerbate the situation by further reducing moisture storage in dry regions and by adding peat-like fuels for fires.

From Alaska to Canada to Siberia, this has increasingly been the case. Last year, Alaska experienced one of its worst wildfire seasons on record. This year, both heat and drought contributed to the severe fires raging around the Fort McMurray region in Canada. And over recent years, wildfires running through a tremendously dry Siberia have been so extreme that satellites orbiting one million miles away could detect the smoke plumes.

Drought and wildfires in or near the Arctic justifiably seem odd, but when one considers the fact that many climate models had predicted that the higher northern latitudes would be one of the few major regions to experience increases in precipitation, that oddity turns ominous. If the present trend toward widespread Arctic drought is representative, then warming presents a drought issue from Equator to Pole.

A dwindling Lake Baikal — which feeds on water flowing in from rain and snow in Central Siberia — bears grim testament to an expanding drought over central and northern Russia. Lake Baikal, the world’s deepest and oldest lake, is threatened by climate change-related drying of the lands that drain into it. In 2015, water levels in Baikal hit record-low levels, and over the past few years, fires raging around the lake have increasingly endangered local communities and wildlife.

To the south and west, the Gansu province of China was placed under a level 4 drought alert this past summerThere, large swaths of crops were lost; half a billion dollars in damages mounted. The Chinese government rushed aid to 6.2 million affected residents, trucking potable water into regions rendered bereft of local supplies.

india-drought-baked-and-bleached-riverbeds

(Lakes and river beds dried up across India earlier this year as the monsoon was delayed for the third year in a row. Image source: India Water Portal.)

India this year experienced similar, but far more widespread, water shortages. In April, 330 million people within India experienced water stress. Water resupply trains wound through the countryside, delivering bottles of potable liquid to residents who’d lost access. A return of India’s monsoon provided some relief, but drought in India and Tibet’s highlands remains in place as glaciers shrink in the warming air.

Africa has recently seen various food crises crop up as wildfires raged through its equatorial forests. Stresses to humans, plants, and animals due to dryness, water and food shortage, and fires have been notably severe. Earlier this year, 36 million people across Africa faced hunger due to drought-related impacts. Nearer term, South Africa has been forced to cull hippo and buffalo herds as a multi-year drought continues there.

Shifting north into Europe, we also find widespread and expanding drought conditions. This situation is not unexpected for Southern Europe, where global climate models show incursions of desert climates from across the Mediterranean. But as with northern Russia and North America, Northern Europe is also experiencing drought. These droughts across Europe helped to spark severe wildfires in Portugal and Spain in the summer, as corn yields for the region are predicted to fall.

drought-wildfires-peru

(During November, drought spurred wildfires that erupted along the Amazon Rainforest’s boundary zone in Peru. Image source: LANCE MODIS.)

Finally finding our way back into the Americas, we see widespread drought conditions covering much of Brazil and Columbia, winding down the Andes Mountains through Peru, Bolivia, Chile, and Argentina. In sections of the increasingly clear-cut and fire-stricken Amazon Rainforest and running on into northeastern Brazil, drought conditions have now lasted for five years. There, half of the region’s cities face water rationing and more than 20 million people are currently confronted with water stress. From September to November 2015, more than 100,000 acres of drought-stricken Amazonian rainforest has burned in Peru. Meanwhile, Bolivia has seen its second-largest lake dry up and critical water-supplying glaciers melt as hundreds of thousands of people fall under water rationing.

Impacts to Food

Ongoing drought and extreme weather have created local impacts to food supplies in various regions. However, these impacts have not yet seriously affected global food markets. Drought in Brazil and India, for example, has significantly impacted sugar production, which in turn is pushing global food prices higher. Cereal production is a bit off which is also resulting in higher prices, though not the big jumps we see in sugar. But a Food and Agricultural Organization (FAO) Index for October of 2016 (173 approx) at 9 percent higher than last year’s measure for this time of year is still quite a ways off the 229 peak value during 2011 that helped to set off so much unrest around the globe.

food-index

(Rising food prices during 2016 in the face of relatively low energy prices and significant climate-related challenges to farmers is some cause for concern. Image source: FAO.)

That said, with energy prices falling into comparatively low ranges, relatively high (and rising) food prices are some cause for concern. Traditionally, falling energy prices also push food prices lower as production costs drop, but it appears that these gains by farmers are being offset by various environmental and climate impacts. Furthermore, though very widespread, drought appears to have thus far avoided large grain-producing regions like the central U.S., and central and east Asia. So the global food picture, if not entirely rosy, isn’t as bad as it could be.

Conditions in Context — Increasing Evaporation, Melting Glaciers, Less Snow Cover, Shifting Climate Zones

With the world now likely to hit 1.5 C above pre-industrial temperatures over the next 15 to 20 years, overall drought conditions will likely worsen. Higher rates of evaporation are a primary feature of warming, meaning more rain must fall just to keep pace. In addition, loss of glacial ice in various mountain ranges and loss of snow cover in drier Arctic and near-Arctic environments will further reduce river levels and soil moisture. Increasing prevalence of extreme rainfall events versus steady rainfall events will further stress the vegetation that aids in soil moisture capture. Finally, changes to atmospheric circulation due to polar amplification will combine with a poleward movement of climate zones to generally confuse traditional growing seasons. As a result, everything that relies on steady water supplies and predictable weather patterns will face challenges as the world shifts into a state of more obvious climate change.

Links:

Global Drought Monitor

Global Drought Information System

LANCE MODIS

#ThankYouNASA 

India Water Portal

FAO

The World Meteorological Organization

Hat tip to ClimateHawk1

Hat tip to June

Hat tip to Ryan

Hat tip to Griffon

Hat tip to Suzanne

Hat tip to Cate

Hat tip to Colorado Bob

Hat tip to Greg

Sao Paulo’s Reservoirs are Drying Out When they Should Be Filling Up

It’s the rainy season for Brazil. But, thus far, adequate rains have not come.

A persistent high pressure system has lingered over Brazil. A blocking high of the kind that has now become so common with global temperatures spiking to more than +0.8 C above 1880s averages — thickening heat domes and granting these powerful weather systems an ever greater inertia. A set of circumstances that has set off a plethora of very severe droughts ranging the globe since the early 2000s.

During early 2015, Brazil’s own persistent atmospheric block re-strengthened over an Amazon whose water re-circulating abilities have been crippled by a combined deforestation and ever more prevalent wildfires. Ever since late December, the high has warded off cold front after cold front. The result is a terrible extension of the worst drought to impact Brazil in at least 80 years.

Southeast Brazil Drought January 11

(No rain in sight in the NASA MODIS satellite shot for Southeast Brazil on January 11, 2015. During a typical day in January, the wettest month for Sao Paulo, the satellite map should be filled with clouds and storms. Not so for 2014 and 2015. Image source: LANCE-MODIS.)

During December, this dogged weather system kept rainfall totals below average — at about 80 percent typical amounts for that time of year. But by January, the high had strengthened and only very weak rains had fallen over Southeastern Brazil with most other areas remaining dry. Now, drought appears to be re-establishing a strong grip as weather forecasts call for the typically strong January rains to be cut in half.

The ongoing drought has had serious and widespread impacts throughout Brazil — curbing production of everything from soybeans and sugarcane to coffee and cattle. But the worst impact has been to the water supplies of one of Brazil’s most populous regions — the Sao Paulo megalopolis. There, an unofficial water rationing has been in place since early 2014. A rationing that has hit Sao Paulo’s least advantaged residents the hardest.

Key Reservoir Drying Out When it Should Be Filling Up

Over the past six years, water levels for the Cantareira reservoir have been in free-fall. By 2014, an 80 year drought pushed already falling water levels radically lower. As an emergency measure, officials added dead pool volume — a level usually below municipal water inlets — to the reservoirs stated reserves. This move coincided with shifting water levels lower.

But the action only bought time for the failing reservoir as month after month of drought continued.

Dead Pool Volume Included

(Water losses from the Cantareira Reservoir since 2009. What this ominous graphic shows is that rainy season failure was not isolated to last year’s epic drought. It is instead part of a six year event that may well represent an ominous trend. Image source: Brazil Water)

By austral spring of 2014 (October), the Sao Paulo water system was again under dire threat. Water levels at the Cantereira reservoir fell to below 6% percent before officials diverted water from other sources and allowed use of water below even already lowered levels. This new arrangement moved water inlets deeper into the drying reservoir. An action that essentially dropped Canteriera outlets to city water supplies into the mud.

These emergency actions by city and water planners added another few percent to the radically diminished water supply. Hopes remained that rains would return with the wet season starting in November and that levels would rise enough to make it through the next summer.

But with rains remaining weaker than normal throughout November and December, water levels kept falling when they should have been rising. By early January, reservoir levels had again fallen to below 7 percent.

On Monday January 5, 2015 the level of Sao Paulo’s Cantariera reservoir was at 6.9% capacity. Today, just one week later, the same reservoir measured 6.5%.

9 Million Facing Lack of Water, Millions More at Risk

In total the Cantareira reservoir serves 9 million residents in Sao Paulo. These are mostly middle and lower class neighborhoods. And if the current weather situation continues, that reservoir could be empty come the start of the dry season in April. Such a situation would force an even more extreme water rationing on a state that has now become famous for water scarcity.

Unfortunately, Cantareira isn’t the only Sao Paulo reservoir under threat. In total, 5 out of 6 reservoirs representing the lion’s share of all water for more than 20 million people are now at 39 percent capacity or below.

The Sistema Alto Tiete — a smaller reservoir serving about 4 million Sao Paulo residents — is not far behind Cantareira. For as of today volume in this reservoir stood at 11.3 percent capacity. A third and fourth reservoir system — Rio Claro and Sistema Alto Cotia — now stand at 27.5% and 30.% capacity respectively. Together these two systems serve another 2 million people. The Guarapiranga reservoir, at 39.2 percent capacity as of 1/12/2015, serves another 4 million people.

A final Sao Paulo reservoir — the Sistema Rio Grande — serves about 2 million residents and remains just above 70 percent capacity.

If current forecasts for January hold and February-March follow present trends, then all these reservoirs with the probable exception of Sistema Rio Grande will be under threat entering the fast approaching dry season. A situation that would put nearly 20 million residents under severe threat of losing municipal water services.

UPDATE:

In addition to Sao Paulo, recent reports show that 93 cities have rationed water services to ever-broadening populations. In total, more than 3.9 million people are estimated to have had their water rationed. In some cases, water has been cut off to broad areas for as long as five days.

This official water rationing began last year. But this year’s rationing is broader in scope with water cut offs, which were at first limited to isolated rural zones, now stretching into larger urban population centers.

As mentioned above with Sao Paulo, this water rationing is occurring during the rainy season when water supplies should be building. However, with rainfall totals for Brazil this summer far less than the historic average and with a continuation of the worst drought in more than 80 years, most reservoirs show dropping levels when they should be filling.

In total, what we see for Brazil is a sad example of what a combination of climate change and deforestation can do to a previously water rich region. Bad management in the face of this crisis and instances of climate change denial are exacerbating an already desperate situation there.

UPDATE:

The Cantareira reservoir fell to 6.4% capacity on 1/13/2015 — a 0.5% loss in just 8 days. System losses at this rate bring the reservoir to zero in about 100 days. However, the current capacity, due to very low level of water outlets  may not be fully useable. In addition, rainy ends in April at which point levels would be expected to drop more precipitously.

Links:

Brazil’s Water Supply, Crops Still at Risk

In Brazil, Two Car Washes Have Wildly Different Experiences of the Same Drought

Drought Menaces Brazil’s Coffee Crop

Drought Vamps Up Brazil’s Cattle Prices

LANCE-MODIS

Off-Season Drought Makes 93 Brazilian Cities Cut off Water

Hat Tip to Andy in San Diego

Hat Tip to Colorado Bob

Hat Tip to TodaysGuestIs

A Sao Paulo Resident Vents Frustrations Over Unfair Water Distribution and Mis-Managed Resources

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