I wonder how all of that 'clean, green' electricity the hybrid buses is produced, especially used in the London area? Not wind turbines, and whilst natural gas powered engines and power stations are considerably less poluting that coal (especially) and oil fired ones, they can't be considered to be 'green'. All its doing is moving the pollution (EVs) to the countryside/coastal areas where most power stations are.
The latest VAG diesels seem to (for once) be actually on the money as regards been low emissions - its those diesels designed between the early 2000s and 2010 that are the issue, and I suspect many commercial vehicles - the old style black cabs, vans, lorries and buses outside of the congestion charge zone that are most of the problem, in addition to some older cars that aren't well maintained.
I would never trust Greenpeace on anything, as they have form over lying about environmental issues: remember the oil rig they wanted to be cut up at a port rather than sunk - it turned out that was worse for the environment. Many of those in such organisations are political activists (and normally Hard Left ones at that) who have little real expertise behind them and who hate Big Business and Western capitalism in general - as much as the likes of VAG have done a lot of things wrong and broken the law (and deserve to be punished), these activist organisations go way too far IMHO.
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