Carbon dioxide is a trace gas and by itself will produce little warming. Also, as CO2 increases, the incremental warming is less, as the effect is logarithmic so the more CO2, the less warming it produces.
11
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
Dirty snow melts faster than clean.
350
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Rain contains vitamin B12.
188
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106