I have just read this and it is fascinating:
BBC News - Old star wallows in 'steam bath'
A star CW Leonis, 500 light years from earth, is shrouded in a thick cloak of water vapour. The sheer volume of water vapour and its location close to the star precludes it being deposited by comets. However CW Leonis is so old its nuclear core churns out Carbon molocules which form our old enemy Carbon Monoxide. However an unknown chemical process it is claimed is breaking down the Carbon Monoxide molocules and turning their oxygen content to water, when they bond with available hydrogen:
Could this discovery and subsequent examination maybe provide us with carbon monoxide conversion technology we could use to clean up the environment? An exciting prospect if it is possible. On the face of it harnessing the CW Leonis chemical process would render fossil fuels usable by rendering their results non-toxic, assuming of course that hydrogen can be garnered to lock up the excess oxygen generated. Whats left over is simple carbon.
All of this assumes of course that vital to any process is not the 2337 Kelvin surface temperature of CW Leonis, which given the close proximity of water vapour to the star itself is very likely. But still this might provide an interesting avenue of investigation which may have a beneficial effect on our own reliance on carbon monoxide producing fossil fuels.