Pollution

A just finished six year study has found there are more than 5 trillion pieces of plastic floating in the world's oceans. Audio

The presence of wastewater and raw sewage doesn't appear to be keeping people away from Christchurch's rivers. Audio

Plant ecologist Bec Stanley from Auckland Botanical Gardens on the chlorophyll-filled bio-mass that photosynthesises around us... don't mow the lawn, grow a meadow! Audio

China, the world's biggest producer and consumer of coal, is on notice tonight, with the latest warning from the UN that global greenhouse gas emissions are at their highest level in more than… Audio

People in Te Anau and Manapouri are crying foul over a plan to pump the town's sewage near the local airport and spray it onto 125 hectares of pasture. Audio

Te Anau residents are kicking up a stink about a Southland District Council plan to pump the town's sewage nearly 20 kilometers out of town and spread it on farmland. Audio

Three estuarine monitoring buoys have been installed in the Kaipara Harbour to identify sources of fine sediment pollution Audio

The US Secretary of State John Kerry wants a global strategy to save the world's oceans from over-fishing, climate change and pollution. The Director of the US Office of Ocean and Polar Affairs, Evan… Audio

In this Ideas hour we look at the pressure on our rivers. The big issue is water quality - the impact of urban wastewater and agricultural runoff on waterways. Audio

How engine exhausts interfere with honeybees' ability to forage for pollen and nectar. Professor Guy Poppy of The University of Southampton did the research. Audio

Central Hawke's Bay Maori say they will withdraw their support for the $600-million Ruataniwha dam if there's evidence it will be harmful to the environment. Labour MP's Maryan Street, Ruth Dyson and… Audio

Fish and Game is warning a Hawke's Bay Regional Council proposal to significantly increase the amount of nitrates allowed in the Tukituki River will kill the river. Audio

Pollution is now the leading cause of death in China. The pH level of rain in Southern China is the same as that of vinegar and there are cities where the smog is so dense people go without seeing the… Audio

Craig Ashworth looks at the progress that's being made to clean up New Zealand's waterways. Audio

Insight looks into the Emissions Trading Scheme; what is it and why do we need it? Audio

This week a panel discussion on how to decarbonise the world. Audio