Water & Atmosphere 4, March 2012

The March 2012 edition of NIWA's flagship publication, Water & Atmosphere.

A PDF copy is also available, and can be downloaded by clicking on the link below.

Water & Atmosphere 4, March 2012 (PDF 2.8 MB)


Pig power

Right now, millions of cubic metres of biogas either gets flared off, or wafts downwind to annoy the neighbours. But that gas could be generating electricity, powering vehicles and balancing our trade deficit at the same time, finds Dave Hansford.
A fly fisherman tries his luck on a still Rotorua morning. Many of the district’s lakes are polluted by nitrogen and phosphorus runoff, and five are the focus of a multi-agency cleanup programme. Returning those lakes to health is seen by some as the foundation of the city’s economic future. (David Hallett/Hedgehog House)