The Mayor said the level of dangerous particulates in the air has been reduced by 15% because of action on encouraging clean vehicles, walking and cycling. He also said he has introduced a plan to bring in an Ultra Low Emission Zone for vehicles in London by 2020.
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Campaigners have vowed to block the building of a £50 million Holocaust memorial that is due to be built next to Parliament.
The vulnerable 64-year old was last seen in Hoxton at 10.45pm on Thursday 8 December.
Two men have been jailed for a total of 18 years after they were stopped in a mini-cab bringing 10 revolvers into the capital.