CO2 was at very safe levels in 1929
Geraldton Guardian and Express Friday 29 November 1929
29 Nov 1929 – DROUGHT CONDITIONS SAN FRANCISCO’S PLIGHT. FORES…
CO2 was at very safe levels in 1929
Geraldton Guardian and Express Friday 29 November 1929
29 Nov 1929 – DROUGHT CONDITIONS SAN FRANCISCO’S PLIGHT. FORES…
Hoover’s fault!