SHARE
COPY LINK

CLIMATE CRISIS

‘Uncharted territory’: Europe faces more deadly droughts and extreme heat

A fierce drought melted glaciers during Europe's hottest recorded summer last year, a phenomenon that could repeat as the continent warms at nearly twice the global rate, the EU's climate observatory said on Thursday.

'Uncharted territory': Europe faces more deadly droughts and extreme heat
An aerial view taken on August 4, 2022 in Les Brenets shows the dry bed of Brenets Lake (Lac des Brenets), part of the Doubs River, a natural border between eastern France and western Switzerland.(Photo by Fabrice COFFRINI / AFP)

Two-thirds of Europe’s rivers fell below average levels and five cubic kilometres (two cubic miles) of ice disappeared from Alpine glaciers, the Copernicus Climate Change Service (C3S) said in its yearly update.

With human-caused emissions heating the planet, Europe is warming around twice as quickly as the world average — 2.2 degrees Celsius over the past five years compared to the pre-industrial era.

In 2022 it saw its second-hottest year and its hottest summer since comparable records began in the 1950s, said Copernicus, which monitors numerous climate indicators via satellites plus land- and sea-based instruments.

Some 20,000 people across Europe died as a result of the extreme heat in 2022, a previous report claimed.

The forecast for 2023 remains uncertain but “with higher concentrations of greenhouse gases in the atmosphere, the probability of more warm years continues to increase,” said Samantha Burgess, deputy director of C3S.

With soils in southern Europe still “incredibly dry”, impacts will be felt this year “unless we have significant spring rainfall,” she added.

“Unfortunately the impacts are probably already in place for growing season. So we’re likely to see reduced crop production this year because of the dry winter and spring period.”

Drought in Europe

Copernicus had earlier announced that the past eight years have been the hottest on record.

It found 2022 “another record-breaking year in terms of greenhouse gases concentration, temperature extremes, wildfire and precipitation, which have all had a notable impact on both ecosystem and community all over the continent,” said C3S director Carlo Buontempo.

An inland vessel navigates on the Rhine as the partially dried-up river bed is seen in the foreground in Duesseldorf, western Germany, on July 25, 2022, as Europe experienced a heatwave. (Photo by Ina FASSBENDER / AFP)

“We are really moving into uncharted territory.”

The continent had less snow and rain than average in winter 2021-2022, followed by prolonged heatwaves in the summer which hit the agriculture, river transport and energy sectors.

River levels were the second-lowest on record with nearly two-thirds of Europe’s rivers below their average level.

The heatwaves drove wildfires, with carbon emissions from such summer blazes the highest since 2017 across the EU.

The lack of winter snow and the high summer temperatures resulted in a record loss of ice from glaciers in the Alps, equivalent to a loss of more than 5km3 of ice,” the report said.

Southern Europe experienced a record number of days with “very strong heat stress” on the human body.

Emissions reductions

Copernicus said satellite measurements of major greenhouse gases in the atmosphere reached their highest level on record in 2022.

Under the 2015 Paris Agreement, countries have pledged to slash their use of fossil fuels with the aim of reaching “net zero” emissions of these gases to limit the rise in global temperatures to 1.5C.

Global temperatures in 2022 were 1.15C above the pre-industrial average, according to the World Meteorological Organization.

Copernicus meanwhile calculated that Europe in 2022 received its highest amount of surface solar radiation in 40 years — a boon for renewable electricity production.

The heat in non-summer months reduced demand overall for electricity as less was needed for heating, it said. In southern Europe demand rose however as people cranked up the air conditioning.

Climate think tank Ember calculated in a report this month that solar and wind energy surged to make a record 12 percent of the world’s electricity in 2022. It forecast emissions from fossil fuels would peak in 2023.

“We have many adaptation options available today by changing supply and demand,” said Daniela Schmidt, earth sciences professor at the University of Bristol, commenting on the Copernicus report.

“Some of these are investments into our infrastructure which will take lead time, but they also include teaching people and companies about land cover change, water savings and efficiency.”

Member comments

Log in here to leave a comment.
Become a Member to leave a comment.
For members

WEATHER

Does Spain use cloud seeding?

Some voices online blamed cloud seeding for flash flooding in Dubai recently. Does Spain use this weather modification technique and is it being harnessed as a means of combatting severe drought in the country?

Does Spain use cloud seeding?

The internet was awash with images of dramatic flooding in the UAE two weeks ago, in which parts of the country saw more rainfall in a single day than it usually does in an entire year on average.

The UEA government stated that it was the most rainfall the country had seen in 75 years and an incredible 10 inches of rain fell in the city of Al Ain.

Predictably, the freak weather event sparked fierce internet debate about the causes and consequences among climate change activists and climate change sceptics. The cause, in particular, struck a chord with certain subsections of the internet and many were asking the same question: did ‘cloud seeding’ cause this biblical downpour?

But what exactly is cloud seeding? Does Spain use it? And with the country’s ongoing drought conditions, should it be using it?

What is cloud seeding?

According to the Desert Research Institute: “Cloud seeding is a weather modification technique that improves a cloud’s ability to produce rain or snow by introducing tiny ice nuclei into certain types of subfreezing clouds. These nuclei provide a base for snowflakes to form. After cloud seeding takes place, the newly formed snowflakes quickly grow and fall from the clouds back to the surface of the Earth, increasing snowpack and streamflow.”

Cloud seeing is used by countries around the world, not only in the Middle East but in China and the U.S, usually in areas suffering drought concerns. The process can be done from the ground, with generators, or from above with planes.

Does Spain use cloud seeding?

Sort of, but on a far smaller scale and not in the same way other countries do. In places like China and the U.S, where large swathes of the country are at risk of drought, cloud seeding is used to help replenish rivers and reservoirs and implemented on an industrial scale.

In Spain, however, the technique has been for a much more specific (and small scale) reason: to avoid hailstorms that can destroy crops.

This has mostly been used in the regions of Madrid and Aragón historically.

But cloud seeding isn’t something new and innovative, despite how futuristic it might seem. In fact, Spain has a pretty long history when it comes to weather manipulation techniques. Between 1979 and 1981, the first attempts to stimulate rainfall took place in Spain, coordinated by the World Meteorological Organisation.

“In 1979, in Valladolid, different techniques were developed to observe the local clouds but they did not meet any possible conditions for cloud seeding experiments. The project came to a standstill,” José Luis Sánchez, professor of Applied Physics at the University of León, told La Vanguardia.

This sort of cloud seeding, as used abroad, doesn’t really happen in Spain anymore. Rather, when it’s used it’s done to protect crops on a local level. Spain’s Ministry for Ecological Transition and the Demographic Challenge are responsible for authorising cloud seeding, but there are only a handful of current authorisations to combat hail, such as the one granted to the Madrid’s Agricultural Chamber combat hail in the south-east of the region.

As of 2024, it is believed that no regions have requested cloud seeding (whether by generator or plane) to ‘produce’ more rain.

So, cloud seeding isn’t currently used like it is in countries such as the U.S., China, and the UAE. But should it, and could it solve the drought issue in Spain?

An aircraft technician inspects a plane’s wing mounted with burn-in silver iodide (dry ice) flare racks. (Photo by Indranil MUKHERJEE / AFP)

Spain’s drought conditions

Spain has been suffering drought conditions for several years now. Last year the government announced a multi-billion dollar package to combat the drought conditions, and several regions of Spain have brought in water restrictions to try and maintain dwindling reservoir reserves. 

READ ALSO:

At times in Spain in recent years it has felt as though another temperature or minimum rainfall record is broken every other day. The drought conditions are particularly bad in the southern region of Andalusia and Catalonia, where, despite heavy rain over Easter, reservoirs in the region are at just 18 percent capacity, the lowest level in the country.

So, could cloud seeding be used in Spain to help alleviate some of the drought conditions? Yes and no. Seeding is not the only answer to drought, but could theoretically be used as one option among many.

“It’s just another tool in the box,” Mikel Eytel, a water resources specialist with the Colorado River District, told Yale Environment 360 magazine: “It’s not the panacea that some people think it is.”

This is essentially because cloud seeding does not actually produce more rain, rather it stimulates water vapour already present in clouds to condense and fall faster. For there to be a significant amount of rainfall, the air needs significant levels of moisture.

That is to say, using cloud seeing to try and stimulate more rain may help Spain’s drought conditions in a small way, but the difference would be marginal.

“It’s not as simple and may not be as promising as people would like,” respected cloud physicist Professor William R. Cotton, wrote in The Conversation. 

“Experiments that produce snow or rain require the right type of clouds with sufficient moisture and the right temperature and wind conditions. The percentage increases are small and it is difficult to know when the snow or rain fell naturally and when it was triggered by seeding.”

SHOW COMMENTS