sure, the studies may not be exactly comparable, and pointing that out is reasonable and even helpful. and yes, costs (including externalities) are not the same

sure, the studies may not be exactly comparable, and pointing that out is reasonable and even helpful. and yes, costs (including externalities) are not the same as the policies (e.g., direct subsidies) addressing them. but there is a relevant term in policy and economics for non-monetary benefits: "indirect subsidies", so again, your semantic argument is on shaky ground. anyways, these are unimportant relative to the acute problem that burning fossil fuels kills people as well as other creatures great and small (not to mention other retaliations by our planet), especially considering that renewable alternatives are becoming economically attractive. so let's price in those negative externalities (which on the flipside is reasonable to view as subsidies to the fossil fuel industry due to their market distorting effects) so that the invisible hand considers all costs in its march toward the optimal allocation of global resources.