Guardian: The number of top 500 global firms reporting their carbon emissions reduction targets to the investment community has fallen, but climate change is still rising fast up the corporate agenda, a new report claims. The Carbon Disclosure Project (CDP), a scheme developed by 385 of the world’s biggest investors holding assets worth $57tn (£31tn), says only 74% of leading companies have reported their strategy for reducing emissions this year, down from 76% a year earlier. And while …