You say it's easy. I don't think so, for several reasons: - If you collect raw data, everyone in the group knows. You can claim instrument failure, of course,

You say it's easy. I don't think so, for several reasons: - If you collect raw data, everyone in the group knows. You can claim instrument failure, of course, but then you'd have everyone around trying to help. - From the raw data alone it's hard to say what to dismiss. So you'd have to do the long-term analysis first and then decide what to ditch - harder then because your data will be on backup, and you will probably have talked about things with people - because it's a group. - You're most probably not the only person using this data. As I said, there are students doing some work for you, other scientists in your group using your data.. and everyone would be happy to find something new. - Additionally, I cannot think of a single professor who wouldn't love to find that global warming is not true.. but I could have misjudged here, of course. demallien has already pointed out what we know and what we think, so I won't go into this.