Leading sustainable transport charity, Sustrans Cymru launches second online travel challenge to get workplaces encouraging their employees to walk, cycle or use public transport for their daily commute.  The ‘Cymru Travel Challenge’ runs from 10th to 31st October with 77 workplaces and 877 individuals signed up so far to leave their cars at home and choose greener modes of transport.  Each year physical inactivity costs the NHS in Wales £51 million and this challenge is aimed to address this, demonstrating how…