"The biggest evil is fossil fuels: it's coal, it's gasoline, it's the natural gas," he said.
The White House report quietly issued today also frequently contradicts President Donald Trump.
One hundred and fifty academics have penned an open letter to the Government demanding it take bold action in response to climate change.
In addition to the summit, Jacinda Ardern will be visiting a produce market, which New Zealand aid money helped to renovate.
The Duke of Sussex and his wife Meghan were guests of honour at the Australian Geographic Society's annual awards to highlight the environment.
A lawyer says NZ is one of only two OECD countries that haven't signed an international shipping pollution agreement.
Climate change and rising sea levels are a concern for many, none more so than on the West Coast, where the Sunday team went to investigate what is being done.
Prediction is the result of a new statistical model using weather trends dating back over 100 years.
Increased costs of products will be passed on to consumers and farms could be hit with emissions rules.
That's according to University of Auckland research that mapped shoreline change of Tuvalu's 101 islands across its nine atolls.