(environmental activist organizations sued the Administrator of the federal EPA seeking declaratory and injunctive relief for defendant's alleged failure to reduce greenhouse gas emissions; theory advanced was that, as federal officers, defendant violated fiduciary obligations to protect the atmosphere under the federal public trust doctrine; federal court dismissed action based on finding that claims based on state common law rather than federal law and dismissed case; plaintiffs sought reconsideration under federal rules; court declined motion for reconsideration because plaintiffs failed to present change in law or clear error).