Britons are fighting a losing battle to keep their iconic river clean amidst ineffective infrastructure and environmental challenges. Elizabeth Pearson reports.

The New South Wales government, Australia, is considering amendments to the National Parks and Wildlife Act that will make it easier for developers and tourism operators to use parks land. Rebecca Leaver, Amanda Hoh, and Nick Evershed reporting.

Welcome to the harbour city – home of the opera house, the bridge and traffic chaos. A battle is on for not only the streets of Sydney but the environment, the economy and just common sense. Will cars and bikes ever get along in Sydney? Strap on your helmet and watch the Battle of Sydney unfold, a documentary by Matt Davis.

Norway’s Sami reindeer herders face an uncertain future due to a changing climate, and increasing development due to oil resources in the Arctic. Lauren Day and Sophie Tarr report on how a way of life is changing for the Sami people.

As a country famed for sunburnt lands and abundant sunshine, Australia has great potential for a successful solar energy industry, yet is still falling behind countries with less natural resources. Stephanie Kok reports.

The NSW government is exposing children to significant health risks by sanctioning an incomplete clean up of industrial contamination on the Parramatta River, according to scientific experts and residents. Elizabeth Pearson investigates.

Made Ferguson explores the proposed development of a hydroelectric dam in the Chilean Patagonia. The project will provide Chile with clean energy at a low economic cost, but 6000 hectares of pristine forest will be flooded, and a community will lose their way of life.