http://www.nation.co.keNakuru County environment department has embarked on a two days anti-littering sensitisation campaign and clean up exercise along the Nairobi-Nakuru-Eldoret highway.The exercise aims at cleaning up the littered highway as well as arrest offenders who have been throwing trash, especially plastic while on transit.According to the Director of Environment Mureithi Kiogora, private motorists are the major contributors to environmental pollution along the highway.