Air pollution from NSW's five coal-fired power stations carry a "substantial health burden", including leading to an estimated 279 deaths a year with thousands more to come before they close.

Researchers found 115 plastic cups, four plastic bottles, 25 plastic bags, 2 flip-flops, a nylon sack and more than 1000 other assorted pieces of plastic in the stomach of a whale that washed ashore in eastern Indonesia.

"Our guests tell us the environment is important, so it's a big deal for us," said a Disney executive.

Scott Simpson, New Zealand's opposition environment spokesman, stunned a trans-Tasman investment meeting last week by stating that climate action was "too important to be playing politics with".

A wonder of nature is playing out in the sleepy suburbs of Melbourne's north, where a rare butterfly has found an unlikely protector.