Second, they directly «refute» that misconception,
e.g., «However, scientists have shown that the
earth is in fact
round.»
OLR (
Earth's outgoing longwave radiation or infrared output) is about 120,000 TW, see
e.g. the top right corner of Figure 7 of http://www.cgd.ucar.edu/cas/papers/KiehlTrenbBAMS97.pdf showing 235 W / m2 of OLR and multiply that by 510 square megameters (area of
Earth's surface) to get 235 * 510 = 119850 which
rounds to 120,000 TW.