What if the gulf stream would stop for say, 50 years? It would cause havoc with the worlds economies and some less stable economies would collapse.
The Gulf Stream provides warm water from the Indian and Pacific oceans to cooler waters such as the northern part of the Atlantic. the cold waters then return to the indian and pacific oceans, cooling them down. if this were to stop the indian and pacific oceans would heat up and the Atlantic cool down to freezing point.
Sunspots are spots on the sun cooler than 15000 degrees celcius. or is it 10000?
Anyway, they impact the earths weather because the change the amount of UV and Radioactive rays that reflect of the Earth and other planets surface.