kravietz 🦇 on Nostr: npub1scrtm…3teus To be honest, I didn’t even realise off-shore wind has such a ...
npub1scrtmdrspxks7h3s0gz45uagynxaz7ueqfex0ynsvpyk7p7se42ql3teus (npub1scr…teus)
To be honest, I didn’t even realise off-shore wind has such a huge environmental impact:
“Pretty much every creature in the sea relies on underwater sound. On land, most animals tend to use vision as their main sense, but in the underwater world, it’s hearing,” says Carina Juretzek, a specialist in underwater noise at Germany’s Federal Maritime and Hydrographic Agency, which regulates and approves offshore wind farms. The small, round harbour porpoise is very sensitive to sound. It uses echolocation to navigate, communicate, hunt and avoid obstacles in often dark or murky waters, emitting ultrasonic clicks that bounce off fish or objects. Loud, human-made underwater noise – including from shipping and offshore wind farm construction – can disturb and disorient the porpoise.
Quite the opposite, I’d say the overwhelming narrative was that on-shore wind environmental impact is negligible (it’s not) and off-shore has literally none. Instead, as it comes out, each off-shore wind farms seems to be a huge sea loudspeaker that requires rather miserable workarounds to only slightly mitigate it:
Bubble curtains are based on a simple principle: sound travels faster through water than through air, because water and air have different densities. When sound waves hit the bubble curtain, they slow down, break up, and bounce against the bubbles, resulting in a loss of energy. The remaining sound that emerges on the other side of the curtain is therefore quieter.
#renewables
To be honest, I didn’t even realise off-shore wind has such a huge environmental impact:
“Pretty much every creature in the sea relies on underwater sound. On land, most animals tend to use vision as their main sense, but in the underwater world, it’s hearing,” says Carina Juretzek, a specialist in underwater noise at Germany’s Federal Maritime and Hydrographic Agency, which regulates and approves offshore wind farms. The small, round harbour porpoise is very sensitive to sound. It uses echolocation to navigate, communicate, hunt and avoid obstacles in often dark or murky waters, emitting ultrasonic clicks that bounce off fish or objects. Loud, human-made underwater noise – including from shipping and offshore wind farm construction – can disturb and disorient the porpoise.
Quite the opposite, I’d say the overwhelming narrative was that on-shore wind environmental impact is negligible (it’s not) and off-shore has literally none. Instead, as it comes out, each off-shore wind farms seems to be a huge sea loudspeaker that requires rather miserable workarounds to only slightly mitigate it:
Bubble curtains are based on a simple principle: sound travels faster through water than through air, because water and air have different densities. When sound waves hit the bubble curtain, they slow down, break up, and bounce against the bubbles, resulting in a loss of energy. The remaining sound that emerges on the other side of the curtain is therefore quieter.
#renewables