SANTA MONICA CARBON - US mayors have agreed to reduce greenhouse emission by 7% in their cities. Santa Monica in southern California is proud to proclaim itself a 'green city.' AIR POLLUTION - We take a look at a bus that can refuel on waste cooking oil. BANANA BOAT - The equipment on this ship can monitor the levels of greenhouse gas carbon dioxide across the ocean. BP LAUNCHES VEHICLE INITATIVE - BP has launched an Internet scheme which offers British drivers the chance to make amends for greenhouse gas emissions caused by their vehicles. ANTI-LITTER CAMPAIGN - The UK government announced plans to make rubbish dumping offenders pay the price. INDIA E-WASTE - Greenpeace discovered the electronic waste in India is a huge hazard to humans and the environment. ARCTIC POLLUTION - According to the World Wide Fund (WWF), man is eroding the Arctic through chemicals and toxins. EVEREST RUBBISH - Has Mt. Everest turned into the world's highest garbage dump? PHILIPPINES HAIR - Thousands of prisoners have volunteered their hair to help clean up the country's worst oil spill.