In science news this week: Providing Flows for Fish; Managing a Non-Native Delta Ecosystem; Rare California trout species returns to native habitat; New proposal for expanded killer whale critical habitat reflects latest science; How rock expands near soil surface in Southern Sierra Nevada; Salt marshes’ capacity to store carbon may be threatened by nitrogen pollution; Are existing laws enough to cope with accelerating environmental change? Providing Flows for Fish:  “A reality in California and the American West is that people are competing … Continue reading SCIENCE NEWS: Providing flows for fish; Managing a non-native Delta ecosystem; Rare California trout species returns to native habitat; New proposal for expanded killer whale critical habitat reflects latest science; and more …