Requiring the vaccination of schoolchildren, even if their religion opposes it
The answer would be:
Thermohaline circulation
It has an impact on climate because when the currents continue to flow through the ocean, cold water is likely to be denser and this density has salt in it. This is important for the ocean, for it bring nutrient water in the surface and to freshened the polar region<span>’s of earth associated with global warming.</span>
Its history, and interesting for us humans in this generation.
Well this was the beginning of women wanting equality, and also inspired the long process in history for African Americans to attempt freedom. It's eventually gained, but even as free people African Americans are not given the same rights as the old white guys who wanted "freedom" back in colonial days.
