Lost in which mines? The number of lives lost in China per year is three orders of magnitude greater than in the US per year. In the US, miners, demand safe working conditions, OHSA regulates safe working conditions and the miners elect to work in the mines. There are huge differences between the US and China just like between the US and the former Soviet Union.
If it wasn’t for the huge differences, Kyoto would be fine and the IPCC would be fine. They are not though, because it is not yet a Kumbaya world.