The pH of seawater has direct impacts on marine organisms and is one of several key variables for determining ecosystem‐scale rates of carbon fixation, metabolism, and air–sea exchange. Based on previous estimates from four decades of monitoring data, the global ocean is acidifying at a rate of −0.0017 pH units yr. However, in biologically active coastal environments where such longer‐term pH data sets are limited to low resol...

To assess the consequences of nutrient reduction strategies on water quality under climate change, we investigated the long-term dynamics of dissolved oxygen (DO) and pH in Narragansett Bay (NB), a warming urbanized estuary in Rhode Island, where nitrogen loads have declined due to extensive wastewater treatment plant upgrades. We use 15 years (January 2005-December 2019) of measurements from the Narragansett Bay Fixed Site Mo...

Ocean uptake of carbon dioxide (CO 2 ) is causing changes in carbonate chemistry that affects calcification in marine organisms. In coastal areas, this CO 2 ‐enriched seawater mixes with waters affected by seasonal degradation of organic material loaded externally from watersheds or produced as a response to nutrient enrichment. As a result, coastal bivalves often experience strong seasonal changes in carbonate chemistry. In s...