Telegraph: Published: 7:00AM GMT 24 Mar 2010 The government shelved the proposed carbon tax, one of Mr Sarkozy’s key reforms, a day after the president replaced a top minister in a reshuffle after his UMP party’s defeat by Left-wing rivals in regional elections. Hundreds of thousands of protesters marched in the streets and teachers, train drivers and other public workers stayed off work to protest job cuts and plans for pension reform. The president has vowed to press on with …