The fundamental reason why carbon dioxide in the atmosphere is critically important to biology is that there is so little of it. A field of corn growing in full sunlight in the middle of the day uses up all the carbon dioxide within a meter of the ground in about five minutes. If the air were not constantly stirred by convection currents and winds, the corn would stop growing.
Freeman DysonPeople who travel in China tell me that the mood there is still very upbeat, because their media is different from our media. Chinese media emphasize how well things are going and suppress the bad news and publish the good news.
Freeman DysonThere is no doubt that parts of the world are getting warmer, but the warming is not global.
Freeman DysonThat's what I learned from World War II. Things are always more complicated than most people believe.
Freeman Dyson