Lake Ontario's condition has fluctuated since European settlement, and our understanding of the linkages between observed ecosystem shifts and stressors is improving. Changes in the physical and chemical environment of the lake due to non-indigenous species, pollution, sedimentation, turbidity, and climate change altered the pelagic primary producers, so algal assessments have been valuable for tracking long-term conditions. We present a chronological account of algal assessments to summarize past and present environmental conditions in Lake Ontario.

Droughts will likely become more frequent, greater in magnitude and longer in duration in the future due to climate change. Already in the present climate, a variety of drought events may occur with different exceedance frequencies. These frequencies are becoming more uncertain due to climate change. Many methods in support of drought risk management focus on providing insight into changing drought frequencies, and use water supply reliability as a key decision criterion.

The law and policy frameworks for allocation or reallocation of water to different uses, or within a category of use, remain underdeveloped in India. This paper intends providing a starting point for a conversation on the law and policy dimensions of inter-sectoral water allocation. Focusing on a specific inter-sectoral water allocation conflict in Rajsamand District, Rajasthan, it illustrates gaps in the existing law and policy frameworks and highlights multiple issues that need to be addressed.