70 proof?
Maybe how thats how the sun was made.
A moon made from 80% vodka and it caught fire
A blob of ehtanol (C2H5OH with molar mass M = 46 g/mol) with density ρ = 800 kg/m3 and 32 miles in diameter (16 mile radius equal to 2.6 x 104 m) has a volume 7.2 x 1013 m3 and a mass 5.7 x 1016 kg. This corresponds to a quantity of substance 1.2 x 1018 moles or 7.5 x 1041 molecules of ethanol.
The reaction for the burning of ethanol is:
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
If we count the number of bonds being broken:
One C2H5OH has 1 C - C, 5 C - H, 1 C - O and 1 O - H bond and 1 O2 has 1 O = O bond, in total 1*8*1 + 3*1*2 = 14 single bonds.
The number of bonds being created is:
One CO2 has 2 C=0 bonds and one H2O has 2 O-H bonds, in total 2*2*2 + 3*2*1 = 14 single bonds.
The number of bonds is not changed. To zeroth order approximation, this reaction is not very exoergic. If one bond releases an energy of 1 eV on average, we would expect an energy release of at most 0.5 eV per 1 'burned' molecule of ethanol. This amounts to an energy of 3.7 x 1041 eV = 6.0 x 1022 J. The average power of Sun's radiation on the Earth's surface is about 1 kW/m2 for a surface perpendicular to the Sun's rays. Because the Sun is approximately 3,100 mi = 5.0 x 106 m high, a sphere with this radius has a total area of 3.1 x 1014 m2. This means that the total power radiated by the Sun is 3.1 x 1017 W. The energy released due to the burning of ethanol would last for 1.9 x 105 s = 2.3 days.
Another matter is the amount of oxygen need for this reaction. The ratio of the number of molecules of ethanol to the number of molecules of oxygen, as we see is 1 : 3. This means we need 2.3 x 1042 molecules of O2 or 3.7 x 1018 moles. The mass of this oxygen (molar mass is 2*16 = 32 g/mol) is 1.2 x 1017 kg. We can compare this to the total mass of hydrogen present in the atmolayer. Namely, normal pressure is 100 kPa at surface level and the area of the Earth's surface (at least up to the Ice Wall) is 1.3 x 1015 m2. The total weight of the atmolayer is then 1.0 x 105 Pa x 1.3 x 1015 m2 = 1.3 x 1020 N. Using the acceleration of free fall g = 9.8 m/s2, this corresponds to a mass of 1.3 x 1019 kg. The percantege of oxygen in the atmolayer is 21%, corresponding to 2.7 x 1018 kg. The mass of oxygen used for burning is 4.4% of the total quantity of oxygen in the atmolayer. This would cause a significant change in the percentage of oxygen and 'greenhouse gases' (CO2 and H2O).
In conclusion, I find your statement highly unlikely.