Ethical questions can arise over the nature of science and the way scientists work.

For instance:

• How do scientists produce evidence for a theory?
• What pressures do they work under?
• Can scientists influence their results? Do they? Should they?
• How much confidence can we have in their findings?
• What is the probability that their latest theory is correct?

What is evidence

Science is full of
controversy

Prof Kathy Sykes
University of Bristol
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