Scottish and Southern Energy (SSE) and the Greater Manchester Passenger Transport Executive (GMPTE) have teamed up in order to provide greener travel for Manchester's inhabitants.The companies have collaborated in order to provide hydroelectricity for the city's trams and provide a low carbon alternative to traditional travel.Philip Purdy, Metrolink director at GMPTE, claimed that the trams already run without polluting at street level, meaning that the use of hydroelectricity will further reduce their environmental impact."Anyone who travels on Metrolink instead of using their car is already helping to fight climate change as trams are nearly four times better for the environment," he commented."Using hydropower will make them even more environmentally-friendly," he went on to add.According to RochdaleOnline, nearly one-fifth of people in Manchester state that they have changed their travel habits as a result of climate change concerns.