00:00Das ist wahrscheinlich wie Sie ein Greener Stadt vorstellen.
00:04Tower-blocks surrounded by plants,
00:07Rooftop-Gardens,
00:08Tree-Lined Streets.
00:10Aber für die meisten Europäer,
00:12das ist nicht die Realität.
00:14Als Klima-Extremes wird mehr Frequent und Severe,
00:18Europäische Stadt sind unter Druck zu adaptieren.
00:22Die Europäische Union hat einen klar Begriff.
00:25Keine Stadt verlieren kann sich die Gäste oder die Gäste über 20.
00:30Und von 20.31 bis zum Jahr,
00:32die Gäste gäste gärten,
00:34bis die Gäste gärten,
00:35bis die Gäste gärten.
00:37Insofern,
00:38Gäste gärten eine Stadt ist nicht nur für mehreren Gäste.
00:42Denn, wenn falsch gemacht,
00:44kann es neue Probleme führen.
00:46Also,
00:47wie wir eine Stadt gärten?
00:55Die Gäste gärten,
00:57die Gäste gärten,
00:58dass alle,
00:59alle,
01:00in 300 m.
01:01von einem Park,
01:02oder Greener.
01:03In Europa,
01:04nur wenige,
01:05als eine halte,
01:06die Gäste gärten.
01:07In Fakt,
01:08die einzige Kapital-Cities,
01:10mit mehr als 15% der Land,
01:12mit Greener,
01:13sind Stockholm,
01:15Athens,
01:16und Dublin.
01:17In Ljubljana,
01:18das ist nur 1%.
01:20Aber die Gäste gärten,
01:22wenn man nur die Gäste gärten.
01:24Ljubljana leads Europe in tree canopy coverage,
01:27followed by Vilnius,
01:28und Zagreb.
01:30Das bedeutet,
01:31Millionen Europäer sind
01:32auf die Vorteile,
01:34die Gäste gärten.
01:36Parks,
01:37gardens,
01:38und Bäume sind nicht nur
01:39ästhetisch,
01:40sie können auch
01:42erhöhen Temperaturen,
01:43erhöhen,
01:44erhöhen,
01:45und erhöhen
01:46excessen.
01:47Research zeigt,
01:48dass unser mental well-being
01:50ist closely linked
01:51zu wie gut wir
01:52handle heat stress.
01:53However,
01:54wenn nicht gut planiert,
01:56in bestimmte Situationen
01:58die Vegetation
01:59kann den
02:00opposite effecten.
02:01In einigen Fällen,
02:02in Funktion der
02:04Geometrie
02:05der Straßen
02:06und wie die Stadt
02:07ist planiert,
02:08einige Straßen
02:09können
02:10erhöhen
02:11das Level
02:12von Wasser.
02:13und die
02:15Dänse
02:16von
02:17Dänse
02:18von
02:19Dänse
02:20von
02:21Dänse
02:22von
02:23Dänse
02:24Dänse
02:26Dänse
02:28Dänse
02:29Dänse
02:30Dänse
02:31Dänse
02:32Dänse
02:33Dänse
02:34Dänse
02:35Dänse
02:36Dänse
02:37Dänse
02:38Dänse
02:39Dänse
02:40Dänse
02:41Dänse
02:42Dänse
02:43Dänse
02:44Dänse
02:45Dänse
02:46Dänse
02:47Dänse
02:48Dänse
02:49outside of parks.
02:50Then it's just a few
02:52places where there's actually room
02:54for trees. But
02:56green walls, they provide
02:58cooling for the building,
03:01reduces the
03:02energy need for cooling
03:04inside the building. Same for
03:06green roofs. And although
03:08they don't have the same
03:10benefits as trees, they do
03:12increase the total leaf area.
03:15So they increase how much
03:16pollutants are
03:18removed from the air as they get
03:20stuck on the leaves instead of
03:22exposed to us.
03:25But choosing the right type
03:26of greenery is part of
03:28the challenge. When it comes to
03:30tree planting, researchers say
03:32it shouldn't be about how many
03:34trees are planted, but which
03:36ones and where exactly.
03:39Without proper guidance
03:40we could be planting the wrong species
03:42in the wrong places.
03:45Cities that planted
03:46just one species
03:47learn this the hard way.
03:50The main focus should be
03:52site-specific tree selection.
03:54Like, they need to tolerate the
03:56site today and tomorrow.
03:57But we have a big issue in Europe
03:59that we have a very limited
04:01diversity of trees.
04:04And Amsterdam and Malmö
04:05have an experience
04:07when you lose a lot of trees.
04:10They did it because they have
04:12planted a lot of elms.
04:13And then the Dutch M disease
04:14came and there are areas
04:16in Amsterdam and Malmö that
04:18lost all the trees.
04:20They have to start all over again.
04:22This is very fragile because
04:23if these overused species get
04:26hit by a disease or a pest
04:28and you lose a large amount of
04:31trees, you also lose all these
04:33benefits and ecosystem services.
04:35Most researchers agree.
04:40If Europe does not get urban
04:42greening rights, many cities
04:44could become unlivable.
04:46The challenge is making sure
04:48the vegetation we plant today
04:50will still be healthy
04:51decades from now.
04:53are not going to go to the
04:54gardens.
04:56Don't worry, you have to
04:58be too tired.
04:59It doesn't exist.
05:00They have to be a large
05:01family, especially
05:02trees, because there are
05:03fairly, small areas.
05:04But there are such
05:06areas where the land
05:08are very
05:17areas.
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