By comparing historical changes in 12 bodies of water worldwide, a new study highlights the extent to which civilization's advance has led to ecological degradation. (sciencenews.org)
These summaries describe climate change projections for each region in the contexts of historical change and province - wide climate change. (pacificclimate.org)
The authors paint a picture of different approaches to such meta - religious topics as historical change, social morality, and the legitimacy of government. (firstthings.com)