Absolute coal threshold Coal assets are particularly carbon-intensive and susceptible to stranded asset risk given the long life of these assets, as well as the evolving regulations on carbon emissions. To ensure we actively manage such risks, we implemented an absolute coal threshold to identify large carbon emitters with a diversified business mix, where relative thresholds may provide inadequate guidance. Our willingness to tackle climate change challenges is reflected in our new, 2019 commitment to not invest in mining companies producing at least 20 million tonnes of coal per year and power utility generators with more than 10 gigawatts of installed coal fire capacity.