Long-term carbon storage in soil crucial to climate mitigation
Coastal wetlands like mangrove forests, seagrass meadows and tidal marshes play a key role in the global carbon cycle, serving as effective long-term reservoirs for so-called blue carbon. Their role is so important they should be considered in global climate change mitigation strategies, according to a new study published last week n the journal Frontiers in Ecology and the Environment.
Ecologically critical tidal wetlands along the U.S. Gulf Coast are being swallowed up by rising sea level and coastal development, but they expand inland if planners consider climate change in their equations.
“Tidal saline wetlands along the northern Gulf of Mexico are abundant, diverse, and vulnerable to sea-level rise,” said Nicholas Enwright, USGS researcher and lead author of the study. “Our findings provide a foundation for land managers to better ensure there is space for future wetland migration in response to sea-level rise.”
Tidal saline wetlands include mangrove forests, salt marshes, and salt flats, which all provide important wildlife habitat and help buffer the impacts of extreme weather. Without areas for these wetlands to move to, people and wildlife will lose the beneficial functions they provide. Continue reading “Can coastal wetlands survive sea level rise?”→
National assessment helps pinpoint conservation issues
The health of American wetlands — at least what’s left of them — in the U.S. is a 50-50 proposition, according to the EPA, which this week released a first-ever national assessment of wetlands conditions, part of a national aquatic resource survey.
Wetlands, once maligned as no-good swamps, are critical for ecosystem health, water quality and flood attenuation, but development and agriculture have chipped away at the waterlogged areas for decades, leaving many degraded.
The UK wants to beef up protection and restoration of peatlands under a new government-backed code that could slash carbon dioxide emissions by 220 million tons and protect rare wildlife at the same time.
The Peatland Code was unveiled at the World Forum for Natural Capital in Edinburgh on November 23 following a successful two-year trial, which has seen businesses fund peatland restoration projects in southwest England, the Lake District and Wales.
The Code is based on research by academics at Birmingham City University and the University of Leeds which revealed that sustainable business investment could reverse the degradation of peatlands and significantly cut greenhouse gas emissions. Continue reading “UK to strengthen protection for peatlands”→
More research showing the cascading ecosystem impacts of climate change
FRISCO — Plovers, grouse and other bird species will suffer as global warming changes the hydrology of the UK’s far-reaching blanket bogs, scientists warned after developing a model that shows how climate change will play out in those wetland ecosystems.
The University of York researchers also warmed that the changes could also put drinking water supplies at risk. Warmer temperatures will lead to peat decomposition and altered rainfall patterns, including summer droughts, which could drastically affecting the blanket bog hydrology.
Conservation groups say new rule has too many pollution loopholes
FRISCO — There will be yet more legal wrangling over a new federal clean water rule, as conservation groups said last week they will sue to plug some loopholes that could open the door for more pollution in wetlands and streams.
U.S. Chamber of Commerce leads effort to overturn Waters of the U.S. rule
By Bob Berwyn
FRISCO — A new federal wetlands rule that helps protect water quality and important wildlife habitat will face a federal court challenge from groups representing some of the country’s biggest polluters.