Most new satellite data is focusing on the oil and gas industry. Methane emissions from coal mining is getting much less attention. The reason oil and gas are being prioritised is 1. There is a financial incentive to reduce emissions (less leaks=more money). This doesn't apply to an open-cut coal mine. 2. Regulations are coming in the US which will put a dollar cost on methane leaks. The EU methane regulations for oil and gas are also coming in. But the biggest motivator is the expectation from investors. They want companies to have methane reduction targets and transparent reporting. They will give companies a 'premium valuation' - a reward for being good corporate citizens if they join frameworks like the OGMP 2.0. Sadly, there is little or no regulation for coal mine methane.