Jules Pipe, the chair of the London Councils, has warned that the Government cannot keep cutting the local government funding to the capital. He says London will need more money to build new primary schools and increase housing.
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The high of 35C was recorded on a Bakerloo line train between Piccadilly Circus and Oxford Circus at 2pm.
Weather forecasters say temperatures could reach 35C, beating the previous record of 34.6C in the scorching summer of 1976.
After years of political manoeuvring over the future expansion of Heathrow Airport, there has been an important development this lunchtime.