There are no wetlands problems with this idea, but the details on this plan are still unclear.
Frameworks focusing on a specific habitat (e.g. wetlands), health problem (e.g. infectious diseases), environmental problem (e.g. flooding), or ecosystem service (e.g. food) were only included where they were generic in form.
Construction of the segmental concrete box-girder replacement was complicated by the need to protect the wetlands below, a problem that was solved by building the bridge from the top down and taking measures to allow the concrete piers to be poured and dried during winter.
Most notably, in 2008 the state Supreme Court overturned the company's wetlands approval, citing problems with its filings.
The disappearance of wetlands has been a problem in Louisiana for decades, and it has been highlighted in recent years by two catastrophes: Hurricane Katrina and the Gulf of Mexico oil spill.
In contrast to CMMB, other efforts such as wetlands banking avoid this problem because the spatial scales of damage and mitigation are equivalent.
Deforestation and sea level rise will likely compound the problem, destroying wetland and forests habitats, while malaria-free habitats are poised to increase dramatically.
If the oil penetrates the wetlands it could worsen the problem further by killing the vegetation that does its best to hold the marshes together.
However, greenhouse gas emission in constructed wetlands is still an accompanying problem.
To address this problem, many coastal wetlands have been restored or created over the past several decades using a variety of construction techniques, but it is unclear if net plant carbon capture in constructed marshes is equal to that of reference marshes, or if rates of plant carbon capture are influenced by marsh construction techniques.
A number of challenges during construction and operation have caused problems with clogging of the vertical flow constructed wetlands and given rise to odour problems.
