Reliant on reputation

If you are asked why you believe in, for instance, the big changes in climate, you might answer that:

• You trust the reputation of scientific research and believe that peer-review is a reasonable way of sifting out 'truths'. 
• You trust newspapers, magazines or TV channels that endorse a political view that supports scientific research to summarise its findings for you. (Here you are twice-removed from the source - you trust other people's trust in science.)