In a reducing environment you can also use a metal powder (like aluminium or magnesium), which at high temperatures reacts with CO2 and burns, self-sustainingly

In a reducing environment you can also use a metal powder (like aluminium or magnesium), which at high temperatures reacts with CO2 and burns, self-sustainingly. More on this: http://newmars.com/forums/viewtopic.php?id=6157 http://newmars.com/forums/viewtopic.php?id=6157