The London Assembly is to examine the capital's first Social Impact Bond - a new way to fund social projects using private investment.
The Mayor, Boris Johnson, introduced one of these bonds in November 2012 to target more than 800 people sleeping rough on London's streets.
The three-year scheme allows charities, social investment companies and individuals to contribute to social projects, and all could make a profit if key targets are met.
The London Assembly's Budget and Performance Committee is to examine those behind the approach, to find out if it's working.
Experts will discuss if Boris Johnson is doing enough to improve London's air quality at a meeting of the London Assembly's Environment Committee later this morning.
Guests including the Mayor's Environmental adviser will answer questions from the Committee on Boris' plans to reduce air pollution.
The Mayor's measures include plans to ensure that by 2020 the vast majority of vehicles in the capital's centre during the working day emit low or zero emissions.
He has also suggested plans to introduce an Ultra Low Emissions Zone in central London.
The London Assembly's new regeneration Committee meets for the first time today.
They'll debate how the capital should benefit best from regeneration.
Members will also quiz experts on how current funding streams can deliver results.
Protesting firefighters brought proceedings at City Hall to a standstill today, as they confronted Boris Johnson.
Mayor's Question Time had to be halted until order was restored - and all of it was witnessed by children visiting from a primary school in Croydon.
Carolyn Sim reports.
The London Mayor's Question Time was temporarily suspended today after protesters disrupted the conference. Firefighters chanted "No ifs, no buts, no fire service cuts", causing the Assembly members to leave the Chamber as order was restored.
The London Mayor's Question Time was temporarily suspended after anti-cuts protesters disrupt the conference. The London Fire Brigade Union claimed the protesters were firefighters:
Amazing scenes: Mayor's Question Time suspended as gallery breaks out into chant of "No ifs, not buts, no fire service cuts."
Assembly members leave the chamber as Mayor's Question Time suspended. Massive anger directed towards mayor.
Incredible scenes at City Hall. Mayor's Question Time suspended as angry firefighters stand up and break into prolonged chant against cuts.
The Mayor of London is expected to face questions on proposed changes to the fire service when he faces assembly members later.
A consultation on the controversial plans to close 12 fire stations and cut 520 firefighters' jobs in London closed on Monday.
The London Assembly is calling for an end to Heathrow night flights to stop the noise disturbing the sleep of thousands of people.
The Health and Environment Committee believe they should be reduced to 'an absolute minimum' at the very least.
If a reduction is not possible they are calling for planes to land from the West, rather than the east. Which would reduce noise disturbance for around 110,000 people.
A new report from the London Assembly calls for more action to help those who are going hungry, despite London being one of the richest cities in the world.Ria Chatterjee visited one of London's food banks in October 2012.
The London Assembly is calling for more action to help thousands of people going hungry in the capital, including school children.Read the full story ›