> An hour run can easily burn 700 calories for someone my size (~70kg).

If you can run for 1h then you are quite likely already in a good shape (if not, running 1h every day would kill your joints).

> Running an hour a day 6 days a week burns more than one pound of fat a week.

Usual advise is to run at most every other day to let the body regenerate. That said, eating 500kcal less each day has the same effect and is much easier then running 1h six days in a row.