Climate change expert Mark Lynas was at the summit . Calls the event a ' near disaster ' saying agreement mainly achieved by Russia . Is optimistic that climate change can be addressed . Says focus should be on power sharing rather than burden sharing .
Climate change expert Mark Lynas was at COP15 summit . Calls the event a 'near disaster ' saying agreement mainly blocked by China . Remains optimistic that climate change can be tackled . Says focus should be on opportunity sharing rather than burden sharing .