http://www.newsweek.com/world-most-eco-friendly-countries-what-doing-right-1722163 > Which are the world's most eco-friendly countries? While this question may sound like it should be relatively simple to answer, in reality, the picture is somewhat nuanced, with nations around the world responding to the challenges of climate change, environmental damage and sustainability in different ways. > According to Lisa Benton-Short, a professor of geography at George Washington University, it can be difficult to categorically rank countries on their green credentials and sustainability, in part, because there are so many complex indicators that can be measured, including efforts to combat climate change, renewable energy, amount of green space, air quality, water quality, housing affordability, inequalities, educational attainment, levels of poverty and labor rights, among others.