Climate Change

An atmospheric concentration of CO2 > 350 parts per million is seen as unsafe

Greenhouse gas emissions

From Stats NZ (2017)

New Zealand’s net greenhouse gas emissions have increased 54 percent since 1990

  • New Zealand’s net greenhouse gas emissions increased 54 percent between 1990 and 2014. Total emissions increased 23 percent.
  • A total of 24.4 million tonnes of carbon dioxide (CO2) equivalent was removed from the atmosphere in 2014, equivalent to 30 percent of New Zealand’s total greenhouse gas emissions that year. There has been a 16 percent decline in removals since 1990.
  • Trees absorb carbon dioxide as they grow, and so remove it from the atmosphere. The increase in net emissions and decrease in removals are partly explained by the large quantity of forests planted in the early 1990s, which are now mature or have been harvested.

New Zealand’s net greenhouse gas emissions have increased 111 percent since 1990 – From Stats NZ (2014)

  • New Zealand’s net greenhouse gas emissions increased 111 percent between 1990 and 2012. Total emissions increased 25 percent.
  • A total of 26.6 million tonnes of carbon dioxide (CO2) equivalent was removed from the atmosphere in 2012, equivalent to 35 percent of New Zealand’s total greenhouse gas emissions that year. There has been a 29 percent decline in removals since 1990.
  • Trees absorb carbon dioxide as they grow, and so remove it from the atmosphere. The increase in net emissions and decrease in removals are partly explained by the large quantity of forests planted in the early 1990s, which are now mature or have been harvested.

Information pre-2017

CO2, Climate Change and 400ppm

An atmospheric concentration of CO2 > 350 parts per million is seen as unsafe

9 May 2013 – the concentration of CO2 in the earth’s atmosphere reached 400 ppm

Making a difference

29 July 2009 

  • Deutsche Bank erected a seven-story sign outside Madison Square Garden in New York
  • the counter shows that  CO2 is being added to the atmosphere at the rate of 800 tons per second
  • Unveiling the sign, Deutsche Bank officials said it was designed to highlight the crisis of global warming and the urgency of reducing CO2 emissions

Skeptics

1.  The climate change message is seen as too complex 
2. Some people believe that climate change is not caused by human factors but part of a natural cycle
Expert credibility on climate change

3. There are other more pressing problems
4. Solutions are too complex
5. People prefer good news stories

Climate vote campaign 2014

Watch the slide show below for climatevoter’s Question of the week sent to each political party

Evidence for Climate Change

Insurance companies

Insurance companies use climate change evidence to mitigate their business risk

Reuters  16 may 2014 

  • A major insurance company is accusing dozens of localities in Illinois of failing to prepare for severe rains and flooding in lawsuits that are the first in what could be a wave of litigation over who should be liable for the possible costs of climate change.

Severe weather events will become more frequent

Thu 08 May 2014

  • Against a background of more frequent severe weather events, such as floods and windstorms, a new report from Lloyd’s highlights the importance of insurers ensuring that their catastrophe modelling tools keep pace with the effects of climate change.
  • They quote the fifth assessment from the Intergovernmental Panel on Climate Change (IPCC), stresses that increasing magnitudes of warming is increasing the likelihood of severe and pervasive impacts that may be surprising or irreversible.

 

Storm surge is from rising sea levels is now the main damaging effect of hurricanes and storms

Dr Muir-Wood  Chief Research Officer at Risk Management Solutions,

  •  …”Water is the new wind” in hurricane risk….in Hurricane Katrina more than 50% of losses were caused by flooding and storm surge. With  hurricane Sandy, the majority of loss was also caused by storm surge, not wind…Looking to the 21st Century, he expects sea levels to rise which will further affect forecasting.

Business Initiatives

Many businesses are applying their understanding of climate change to make a living