March 2, 2016 - Global climate change may actually be setting the stage for greater species diversity in the Pacific Northwest. And that could be both positive and negative, depending on the species.
As the climate changes, scientists have been closely monitoring what happens as more carbon dioxide enters our waterways. In recognition of that issue, Florida State University Assistant Professor of Biological Science Sophie McCoy delved into old experiments that explained species diversity and how different species were competitive with one another. Noticing physical changes in the algae’s skeletal structures, she wanted to see if ongoing ocean acidification — the increase in carbon dioxide in the water — affected species interaction. The answer was yes. “Ocean acidification is promoting competition and no one is dominating,” McCoy said. The research is published today in the journal Proceedings of the Royal Society B.
March 23, 2016 - The National Endowment for the Humanities (NEH) has chosen FIU’s History Department in the Steven J. Green School of International and Public Affairs (Green School) as the only Florida recipient of a Humanities in the Public Square grant. The grant funds a series of public events, programs, and conversations showing how the humanities can help us come to terms with the threats to Miami from climate change.
“We need more than science and policy right now,” said project director April Merleaux, environmental history professor at FIU. “With this NEH grant, FIU will be able to share another view of some of today’s most pressing issues. We look forward to engaging our community in these important conversations as we imagine our future in South Florida.”
Led by Merleaux and Rebecca Friedman, faculty fellow at FIU’s Office of the Provost and director of FIU’s Polish Lecture Series, FIU will team up with HistoryMiami Museum, the Wolfsonian-FIU, The Kampong, Vizcaya Museum & Gardens, Miami-Dade County Public Schools, Catalyst Miami, and the FIU Green Library Digital Collections Center. The project will feature faculty experts from the Green School, the College of Architecture + the Arts and the College of Arts, Sciences & Education.
A total of seven events will feature literary and religious studies experts, historians, philosophers, geographers and other scholars sharing their perspectives on risk, fear, hope and resilience, among other themes related to sea level rise and climate change.
March 29, 2016 - The National Academies of Sciences, Engineering, and Medicine has released a new report titled Next Generation Earth System Prediction: Strategies for Subseasonal to Seasonal Forecasts. The report was prepared by the Committee on Developing a U.S. Research Agenda to Advance Subseasonal to Seasonal Forecasting, which includes FCI co-director Dr. Eric Chassignet (FSU).
Report Description:
As the nation’s economic activities, security concerns, and stewardship of natural resources become increasingly complex and globally interrelated, they become ever more sensitive to adverse impacts from weather, climate, and other natural phenomena. For several decades, forecasts with lead times of a few days for weather and other environmental phenomena have yielded valuable information to improve decision-making across all sectors of society. Developing the capability to forecast environmental conditions and disruptive events several weeks and months in advance could dramatically increase the value and benefit of environmental predictions, saving lives, protecting property, increasing economic vitality, protecting the environment, and informing policy choices.
Over the past decade, the ability to forecast weather and climate conditions on subseasonal to seasonal (S2S) timescales, i.e., two to fifty-two weeks in advance, has improved substantially. Although significant progress has been made, much work remains to make S2S predictions skillful enough, as well as optimally tailored and communicated, to enable widespread use. Next Generation Earth System Predictions presents a ten-year U.S. research agenda that increases the nation’s S2S research and modeling capability, advances S2S forecasting, and aids in decision making at medium and extended lead times.
April 4, 2016 - A new study from researchers at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science (RSMAS) found that multiple stressors might be too much for corals. The findings have important implications for the resilience of coral reefs to climate change.
To test the coral’s response to multiple environmental stressors at once, UM Rosenstiel School researchers placed Caribbean branching coral Porites porites in waters with high levels of carbon dioxide (900 parts per million) for two months to mimic high ocean acidification conditions. Following the preconditioning, half of the corals were then subjected to increased water temperatures for two months. Following the five-month period, the researchers analyzed the growth, feeding rates, and photochemical efficiency of their algal symbionts in both groups to understand how they responded to multiple environmental stressors. Many previous studies have assessed the effects of multiple stressors, but this study is novel because it is the first to precondition corals to high CO2 before exposing them to a thermal bleaching event.
Corals preconditioned to high CO2 levels before the increased temperatures showed 44 percent lower growth rates compared to the group that only experienced a single stress of increased carbon dioxide. The researchers suggest that preconditioning to elevated CO2 worsens coral response to thermal stress, which could potentially exacerbate the effects of climate change stressors on coral reefs.
“This study is similar to what corals will likely experience in nature in the coming decades,” said Erica Towle, a UM alumna and lead author of the study. “The findings improve our understanding of how reefs will respond to climate change in the future.”
Marine Ecology Progress Series Journal Article
Photo Credit: James St. John
April 6, 2016 - A new University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science-led study found that Miami Beach flood events have significantly increased over the last decade due to an acceleration of sea-level rise in South Florida. The researchers suggest that regional sea-level projections should be used in place of global projections to better prepare for future flood hazards in the region.
To quantify the flood hazard in Miami Beach, the UM Rosenstiel School researchers analyzed tide and rain-gauge records, media reports, insurance claims, and photos of flooding events on Miami Beach and in Miami since 2006. The insurance claims and media reports helped the researchers pinpoint the date and type of flood events.
“Our results show that the effect of sea-level rise is real and affecting the daily life of people living in low-lying coastal communities, such as Miami Beach,” said Shimon Wdowinski, UM Rosenstiel School research professor of marine geosciences, and lead author of the study.
The results showed that the flooding frequency in Miami Beach has significantly increased after 2006 mainly due to increasing number of high-tide flooding events. The increased flooding frequency coincides with acceleration in the rate of sea level rise in South Florida. The average rate of sea-level rise increased by 6 millimeters per year over the last decade - from 3 millimeters per year before 2006 to 9 millimeters per year after 2006.
The study’s additional co-authors are Ronald Bray and Ben P. Kirtman from the UM Rosenstiel School; and Zhaohua Wu from Florida State University.
Ocean & Coastal Management Journal Article
Photo Credit: Shimon Wdowinski, Ph.D.