Traditionally citations are used to support your statements. These citations are linked to other peer reviewed works, and checked during the peer review process. From a reputable journal you can expect all statements to be backed by citations which are current and scientifically sound.
But which journals are reputable and which are actually a politically motivated outliers such as Energy & Environment? Which studies have been debunked and which have not? Where do you go to find the study which disproves the study you are viewing? The average consumer has no idea, and industry front groups have free reign to parade any position as science.