climate.
they look at how warm it is to determine how old (?)
Answer:
Information about mass Jewish massacres started to enter the free world shortly after the events in the Soviet Union began in late June 1941, and the number of those stories grew over time. German police accounts captured by English spies, local testimonies, and escaping Jews heading to the hidden were among the first sources of evidence.
The Allies published a declaration on December 17, 1942, denouncing the genocide of Jews in Europe as well as pledging to prosecute those responsible. Regardless, it is unknown to what degree Allied and impartial leaders comprehended the full significance of their knowledge.
