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What do 'carbon neutral' and 'carbon footprint' mean?
A carbon neutral activity is one that has a carbon footprint of zero. -
What are greenhouse gases?
Greenhouse gases are atmospheric gases that intercept long-wave (mainly infrared) radiation emitted from the Earth's surface. -
What are ppm and ppb?
PPM and PPB are units used in atmospheric chemistry to describe the concentration of gases. -
What is ocean acidification?
Education ResourceOcean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere. -
NOAA Satellite data
Like the GMS satellite, the NOAA Series of polar orbiting satellites (operated by NOAA, the US National Oceanic and Atmospheric Administration) are a component of the World Weather Watch meteorological satellite network. -
How can carbon emissions be weighed?
The mass of carbon emissions can easily be calculated. -
Real-time UV Index displays
NIWA has developed a real time UV display in consultation with the Cancer Society and Sunsmart. -
Atmospheric ozone, ultraviolet radiation, and stratospheric change
Research ProjectCFCs have damaged the ozone layer and led to higher UV levels and increased health risks. Our role is to understand the causes and effects of ozone depletion, to inform the public of the risk. -
Trace gas datasets
ServiceNIWA makes a range of trace gas data freely available on our FTP site. -
What is the greenhouse effect?
Education ResourceThe greenhouse effect is a warming of the earth's surface and lower atmosphere caused by substances which let the sun's energy through to the ground but impede the passage of energy from the earth back into space. -
Carbon dioxide
FacilityAtmospheric carbon dioxide (CO2) is measured continuously at Baring Head, providing the longest running record of this type in the Southern hemisphere.
