resin

When trees are infested with a few thousand beetles they can cope, using resin to flush the beetles out.

The others include rules governing mercury and air toxics; polymers and resins; rubber tires; copper smelting; and coal power, among others.

On Chios, an intense wildfire in 2012 wiped out more than half of the island's iconic mastic - a tree resin used in cooking and pharmaceuticals - disrupting the global supply of the so-called "tears of Chios".

Restoring a Rothko painting is a difficult task because "Rothko's mixture of pigments and resins and glues were quite complex", Mr Helm said.

"Pine trees contain resin, which acts like oil, intensifying fires when ignited. This resin causes wildfires to burn faster, stronger, and longer," said Lee Byung-doo from the National Institute of Forest Science in Seoul.