According to the methodology of naturalism, such scenes and dramas had to be based on scientific observation and documentation, and presented without a moralising commentary.
As impacts of land use are uncertain, new policies should consider multiple benefits and decisions should be based on scientific evidence and field scale observations.
The unique report, based on scientific analysis of tens of millions of observations from volunteers, shows that from woodland to farmland and from freshwater streams to the sea, many animals, birds, insects, fish and plants are in trouble.
Initially the input or data gathering and observations must be based on scientific methodologies and approaches.
A summary of the criticisms levelled at the TSA by industry leaders such as Broughton and the travelling public alike boil down to the observation that the agency makes policy on the hoof, and that its policies are not based on scientific examination of risks and remedies, but on "what if" scenarios.
But decisions must be based on scientific evidence.
Lees said the work was based on scientific research.
The decisions are supposed to be based on scientific evidence.
It was a reasonable decision, based on scientific evidence.
"Decisions are made by scientific process and based on scientific data.
