Cutting methane leaks from coal mines is the cheapest way for Australia to significantly reduce emissions of the potent greenhouse gas, according to a new analysis.
The increasing breadth of repurchases reflects extra profits from mining and energy firms, which are among the winners from surging commodity prices resulting from the war in Ukraine.
If the answer to the energy crisis is a faster rollout of renewable alternatives to fossil fuels, then the problem is that the current situation is hindering the solution.