2. what had driven the conquistador francisco pizarro across the atlantic ocean in 1532? how many ounces of sliver were extracted from south america over 250 years of spanish rule?

3. why was the gold and silver from the new world unable to halt spain's economic decline in the 16th and 17th century? what did the spaniards never get (about money)?

you would travel west

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.