C gives more power to the individual states
The primary responsibility of scientist is to make honest and ethical presentation of data for making Environment laws because transparency in the data would help to determine the better strategies for Environment protection however narrow data standards or biased data who represent the interests of certain communities could lead to challenges and uncertainties in the form of Causalities which could produce crucial results.
Our solar system is in the outer reaches of the Milky Way galaxy, near the outer spiral arm (Orion arm)
Ocean warming provides a good example of a potential positive feedback mechanism.