Forest fires are currently raging in the western United States.
Dry thunderstorms are partly to blame.
A meteorologist explains the phenomenon - and creates a gloomy forecast for Europe too.
Forest fires are
raging
in
California
and other US states
and have already claimed numerous lives.
A debate about the
causes has
broken out
in the
USA
- and that at the highest political level.
A meteorologist explains a
weather phenomenon
that he also expects to be an increasing danger for Germany.
California - It
is not uncommon for
forest and bush fires to
rage
in the western United States
.
The duration and extent of the devastation, on the other hand, reach
worse dimensions
year after year
.
The current forest fires, which began in California and have now spread to other US states, have been going on since mid-August and the flames have not yet been extinguished.
Dry thunderstorms: weather phenomenon is becoming more and more dangerous due to climate change
Meteorologist Jan Schenk describes
a
weather phenomenon
to
Focus Online
that allegedly plays a major role in the fire in California and can increasingly promote severe forest fires in Europe and Germany:
dry storms
.
These would be favored by increasing global warming and also come to bear in the events in the western United States.
In the
forest fires in North America,
over 13,000 lightning strikes were registered within ten days, says the scientist from the
Weather Channel
.
+
Forest fires have raged in California since mid-August, accelerated by steadily increasing periods of drought.
© Noah Berger / AP / dpa
The dangerous: lightning and thunder occur without rain and are caused by
clouds of fire
due to the development of heat on the earth's surface.
Schenk explains: “Fire clouds are created by extreme heat that is released in forest fires, for example.
The heat ensures that very large air masses rise within a very short time and clouds form even when the sky is actually clear, including soot and ash. "
These clouds of fire would then
develop
into
dry
storms, which indeed generate liquid, but which evaporate due to the extreme heat before it reaches the ground.
The
striking lightning bolts of
this meteorological peculiarity in turn ignite
new fires
- according to Schenk, this was also the case with the raging fire in the
USA
.
The warmer and drier the region, the greater the
risk of dry thunderstorms:
a cycle that is dangerous for people.
As a result, the natural occurrence occurs more frequently in areas that suffer from extreme heat.
In the United States, 35 people have already been killed in the current forest fires, and many more are missing.
Forest fires due to dry storms are also a danger for Europe - and Germany
Is a
similar scenario
also
possible
in
Europe
?
Definitely, says Jan Schenk in the
Focus
article - and not only in southern countries such as Spain or Portugal: For Germany, too, fire clouds represent an increasing danger: “However, it depends on the intensity of the forest fire.
With increasing drought, especially in
East Germany
, fire clouds and thunderstorms become more and more probable, ”reports the meteorologist.
Meanwhile, US President
Donald Trump
once again
denied
climate change
during a visit to the
forest fire areas in California
.
“It will be cooler again.
You will see, "said Trump.
The opposition presidential candidate Joe Biden then described Trump as a "
climate arsonist
".
Climate change favors dry thunderstorms: the risk of forest fires increases - and so does human risk
According to the unanimous opinion of scientists, the
warming of the earth's climate is
partly responsible
for the forest fires in the western USA, which have been increasing in size for years
.
The
climate change
therefore leads to ever
more drought
in nature, which in turn
spread of flame
accelerated.
Peter Wohlleben, forest expert, revealed in an interview with
Deutschlandfunk
what measures would have to look like so that the increasing risk of fire can be stopped.
And that shouldn't please climate change deniers like US President Donald Trump:
The #climate change is the trigger of the forest fires in the #USA, says forest expert @PeterWohlleben.
In the interview he suggests arming the forests against it.
#Trump had again denied the #ClimateChange in #California.
Here is the interview with Wohlleben: https://t.co/0O6UpFH1Zb
- Deutschlandfunk (@DLF) September 15, 2020
Another problem with regard to climate change: the
rise in sea levels
.
The Thwaites Glacier in Antarctica is one of the largest in the world.
But it melts extremely quickly.
The main cause of forest fires is still people.
Often the result is inattention, sometimes arson.
As with what happened in Moria, the largest refugee camp in Europe.
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List of rubric lists: © Noah Berger / AP / dpa