Dr Greenthumb

Birds of New Zealand

Since humans arrived in New Zealand, the country has experienced one of the highest species extinction rates in the world due to the loss of habitats and the introduction of pest plants and animals. Today, almost 2,500 native land-based and freshwater species are listed as threatened. The effects of climate change may further exacerbate pressures on our most endangered species. The isolated evolution of New Zealand's native species means many of them lack strategies to co-exist with or defend themselves against introduced competitors and predators. Introduced pest animals and weeds can therefore pose a serious threat to New Zealand's biodiversity in both land and freshwater environments. Here are some New Zealand birds which are having a few problems right now.
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Zero emission cars.

Plug-in cars are here, nearly ready to market. We just need to put wind in the driver's seat. Several major auto manufacturers, including GM, Ford, Toyota and Nissan, are producing plug-in hybrids. Both Toyota and GM are committed to marketing plug-in hybrids in 2010. Toyota might even try to deliver a plug-in version of its Prius gas-electric hybrid, the bestseller whose U.S. sales match those of all other hybrids combined, next year.
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Waste Not Want Not

The past few weeks have been inorganic collection in and around the Bays. For the first time I have really paid attention to what and how much people actually put out for collection. Top of the list has got to be TVs and old computers and monitors. Now that everyone has got his or her own Sky City cinema LCD/Plasma screen and home theatre system, the old "tube" has become obsolete. The same goes for computers considering that every week every computer manufacturer brings out a new and improved unit even if the "improvement" is merely cosmetic.
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Waste should be seen as a design failure

The production, processing, and disposal of material in our modern throwaway society wastes not only materials but energy as well, thus producing unnecessary, climate-disrupting carbon dioxide emissions. In nature, one-way linear flows do not survive long. Nor, by extension, can they survive long in the expanding global economy. The throwaway economy that has been evolving over the last half-century is an aberration, now itself headed for the junk heap of history. The potential for sharply reducing materials use was pioneered in Germany, initially by Friedrich Schmidt-Bleek in the early 1990s and then by Ernst von Weizsäcker, an environmental leader in the German Bundestag. They argued that modern industrial economies could function very effectively using only one quarter the virgin raw material prevailing at the time.


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Throw away world

Every day, in every country around the world, people dispose of single use items with out a second thought. When the consumption rates of specific items are looked at individually, the statistics are so huge they are virtually incomprehensible. The human mind can either not visualise the vast quantities of said items or subconscious chooses to ignore the truth when it is unpleasant. The reasons for rising fuel and food costs and climate change are perfect examples of bad news that is blocked out by some.
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