As far as I know there was no report of "life" pop up in a lab or in the nature so far.
Everything what we know is only some copy with less-or-more similarity to previous life-form.
We certainly can mix some amino acids and stuff and even some of the chemicals can retain some structure for a certain time and even form some proto-RNA-like structure (not sure how they called it in one document I have seen) etc., but it's very very far from a living organism.
Does it mean that life cannot be "sparked" in today's Earth like conditions or it even wasn't sparked here? I have read, as many others have done, this article New research supports an idea that the Red Planet was a better place to kick-start biology billions of years ago than the early Earth was. and they argument that you need molybden-something etc. to create life-like structures and that it's not common in the right form on Earth.
What you as a biologist think about the statement that life cannot evolved on Earth because the conditions in the beginng of the Earth were not good for life development.