Micro-Evolution has been observed in the modern day and is accepted as Fact among the scientific community.
Macro-Evolution, cannot be observed as it occurs over millions of years, however there are many evidences that support the theory.
Here are 29+ evidences for Macro Evolution:
http://www.talkorigins.org/faqs/comdesc/
Note that among any reputable scientist with a biology or paleontology background, both micro and macro evolution are accepted as fact.
The only people that believe otherwise are:
- Uneducated
- Misled
- Willfully ignorant