"cannot be burnt" is grammatically correct and can be used in written English.
You can use "cannot be burnt" to describe something that is not able to be set on fire or burned. This phrase is often used to emphasize the strength or durability of an object or material. Example: "The ancient parchment manuscript, carefully preserved in a climate-controlled chamber, cannot be burnt by even the hottest flames."
A CD's worth of music costs about the same as it would in the shops, and cannot be burnt on to a CD or sent to friends.
"What's under the ground cannot be burnt within a 2C framework unless you have some method of sequestering the carbon dioxide or that you change in other ways".
Much less attention has been devoted to the study of crude rapeseed oil due to the fact that the latter cannot be burnt without modifications in micro gas turbines designed for crude oil derivatives (diesel oil, kerosene, etc).
Financial stability could be threatened if shares in fossil fuel companies turn out to be overvalued because the bulk of their oil, coal and gas reserves cannot be burnt without further destabilising the climate.
Financial stability could be threatened if shares in fossil fuel companies turn out to be over-valued because the bulk of their oil, coal and gas reserves cannot be burnt without further destabilising the climate.
Scientists have shown that most fossil fuel reserves cannot be burned without dangerous climate change.
Scientists have shown that most existing fossil fuel reserves cannot be burned without causing dangerous climate change.
According to scientists, the vast majority of coal, oil and gas reserves cannot be burned if global emissions reduction targets are to be met.
Pulp driers are a major energy consumer at the beet factory, which must purchase fuel since pulp cannot be burned and has a high market value as feed.
After about three years of use, the fuel is depleted of most fissile uranium but has accumulated long-lived radioactive materials that cannot be burned in conventional reactors.
If we are to constrain global warming to less than two degrees, Australia's remaining fossil fuel reserves cannot be burned.
