energías renovables: impactos sobre la fauna
TRANSCRIPT
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Energías Renovables: Impactos sobre la fauna
M.Ferrer EBD-CSIC CONAMA Junio 2021
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•CLIMATE CHANGE SPEED: 0.42 Km/year ACCORDING JULY ISOTHERMS
•BETWEN 10 AND 25 TIMES FASTER THAN IN THE LAST GLACIATION
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We NEED renewable energies
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Las plantas fotovoltaicas pueden tener unimpacto negativo en la biodiversidad perotambién positivo. Faltan estudios básicopara elegir bien nuevos emplazamientos,mitigar los efectos negativos y potenciarlos positivos.
Necesitamos estudios bien diseñados comolos diseños BACI (before-after-control-impact), y debemos tenerlos rápido, antesde que se termine de producir unaimplantación masiva
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Conservationist groups interested in birds
said:
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Oil and gas industries, suddenly interested in the environment,
said:
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“You want to see a bird graveyard?” he asked. “You just go. Take a look. A bird graveyard. Go under a windmill someday. You’ll see more birds than you’ve ever seen ever in your life.”
By the way, wind turbines also causes cancer……..
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Conservationist groups, interested in the fight against
Climatic change,said:
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And, at the end….
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In the middle of the fight, applied ecologists trying to find a solution that allows birds and turbines share the wind
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And Now?
1) We need to mitigatemortality caused by poorly placed turbines.
2) We have to changeour methods of evaluating potential risk in new facilities.
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~ 70% of the turbines never killed a bird
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Percent of stopped turbines
0
10
20
30
40
50
60
70
80
90
100A
cum
ulat
e re
duct
ion
in G
riffo
n vu
lture
mor
talit
y
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2006-2007 2008-2009
Jan. March May July Sept. Nov .
Months
-2
0
2
4
6
8
10
12G
riffo
n vu
lture
mor
talit
y
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•Since 2008, we've been using a selective stop program to stop turbines when vultures were observed nearby.
•The mortality rate from griffon vulture was reduced by 65%, with only a reduction in total wind farm energy production by 0.07% per year.
•The use of selective stop techniques in turbines with the highest mortality rates mitigates the impacts of wind farms on birds with minimal effect on energy production.
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And Now?
1) We need to mitigatemortality caused by poorly placed turbines.
2) We have to changeour methods of evaluating potential risk in new facilities.
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Using Wind Tunnels to Predict Bird Mortality in Wind Farms: The Case of Griffon Vultures
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N
Viento Sur Viento Sureste Viento Este
No statistical differences were detectedbetween the observed flight trajectories ofgriffon vultures and the wind passagesobserved in our wind tunnel model
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A significant correlation was found between dead vultures and predicted proportion of vultures crossing each turbine according to the aerodynamic model (rs = 0.840, n= 6. P= 0.036).
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Ensayo V-45 (100 m)
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Thank you for your attention