A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too.

How may agricultural activities increase sediments in waterways?

The mass of carbon emissions can easily be calculated.

NIWA makes a range of trace gas data freely available on our FTP site.

View a collection of maps showing the impact of past El Niño and La Niña events.

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Kaitiaki Tools is a guide to teach people (especially hapū and iwi groups) who manage the resource consent process.

Mining is the extraction of metal and mineral resources, such as gold, coal, petroleum, and ironsand

These datasets are available in a range of formats.

Has a receding lower jaw and black spots behind the head.

Returning water to our waterways after we’ve used it in our homes, on farms and in industry is a complex and challenging process.