Unfortunately, while your projectile is travelling extremely fast it is still in a ballistic arc whereas a laser is not. It may give you enough atmospheric attenuation for a short distance- and critically so since the nearest atmosphere is going to be the most problematic but I'm not about to do the math for that! More importantly, it may mitigate the brick wall that the projectile hits on leaving the barrel.
Cattle produce large quantities of methane via belching and farting. Methane is 20 times WORSE as a greenhouse gas than CO2. If you want to prevent global warming, stop eating beef. The concept of using cow manure as fuel is clearly insane as it won't save you a penny and will be more damaging to the environment than fossil fuels. You want to save money then buy a smaller car and car-pool.
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Unfortunately, while your projectile is travelling extremely fast it is still in a ballistic arc whereas a laser is not. It may give you enough atmospheric attenuation for a short distance- and critically so since the nearest atmosphere is going to be the most problematic but I'm not about to do the math for that! More importantly, it may mitigate the brick wall that the projectile hits on leaving the barrel.
Cattle produce large quantities of methane via belching and farting. Methane is 20 times WORSE as a greenhouse gas than CO2. If you want to prevent global warming, stop eating beef. The concept of using cow manure as fuel is clearly insane as it won't save you a penny and will be more damaging to the environment than fossil fuels. You want to save money then buy a smaller car and car-pool.