taken_every_

Might be better to base this off of buisnesses and landmarks in your area. I know mine quite well but fucked if I know where some tiny side street with a common name is. Maybe that works better with American style suburbs and grid cities, but in Europe it's pretty difficult if you are not specifically a delivery person or taxi driver.

That's what most carbon capture tech seeks to do, this would be direct carbon capture from the air. You are completely correct in assuming this is highly inefficient. As long as we are still blasting new CO2 into the atmosphere, it will always be easier to capture it at the source. Direct air capture only becomes significant when we get access to enough clean energy to power the absurdly inefficient technology. Thermodynamically, even if you are capturing at max efficiency, it still sucks (something like 250kwh+ minimum to extract 1ton of CO2, not even close to reality). We need either abundant renewables or fusion/fission energy to make it viable.

On 3), I've worn my Schwalbe marathons down to the kevlar layer, probably more than 10000km. No issues so far. I recently heard a clicking noise while riding, turns out there was a huge glass shard stuck in it. No problem after pulling it out. Not to sound like an ad, competitors probably have similar performance now

Convalescent plasma -> blood plasma from someone who recovered

Highly neutralizing -> very effective at murdering COVID virus

Polyclonal antibody response -> the person's immune system produced different antibodies to fight COVID which probably attack different parts of the virus