Until 1900

1. [Crantz 1765]
   Mentions opposition of winter in Greenland and Northern Europe.
   Ref. de [van Loon and Rogers 1978]

2. [Dove 1839]
   The opposition of temperature of the seesaw happens when the distance between two places exceeds the width of an air current and they thus come to lie in opposing currents
   Ref. de [van Loon and Rogers 1978]

3. [Fourier 1827]
   Efecto invernadero.
   Global change, temperatures.

4. [Hann 1890]
   Ilustrates the seesaw by means of a 42-year series of monthly mean temperatures from Jakoshavn in Greenland and Vienna. In 27 of the years the deviation of the winter temperature from its 42-year mean was opposite in the two locations.
   Ref. de [van Loon and Rogers 1978]

5. [Tyndall 1861]
   Meassures the long wave absorption by atmospheric gases. Water vapor and CO2 arese as the most important.
   Climate change, CO2

6. [Arrhenius 1896]
   Calculates change in surface temperature with increase of CO2 (carbonic acid). Includes cloudiness and albedo. Heating: 6K
   Climate change, CO2