The headings in this section provide links to some of the topics in the Ideas Bank. Click on the Ideas Bank link, or to see a full list of topics. Climate change Waitakere is a particpant of the United Nations Environment Programme's Climate Neutral Network Waitakere is New Zealand's fifth largest city representing nearly five percent of the country's population. The city's Action Plan on Climate Change and Energy targets stabilizing per capita greenhouse gas emissions by 2010 and reducing them by 80 percent by 2051. * Waitakere Online * Waitakere City Council