Globalization is certainly one of the biggest and most important phenomena we can study throughout history. It's still happening and we can always find new (both positive and negative) implications and consequences.
Some of the most important results to me would be:
-An increased product reach to locations that may not have the resources to produce certain things on their own before.
-A more diverse and farther-reaching spread of cultures, which introduce new ideas and ways of thinking to areas of research that may have been inactive before.
-A harsher impact on the world's resources, due to larger markets using more and creating more scarcity.
-The appearence of "resource nations", in which more supplies leave than what gets in, creating a hard to break cycle of usage in which some countries rise at the expense of others.
-Last but not least: a massive increase in the amount of waste at large.
Hope this helps out!