Mangrove Carbon Storage and the Impact of Sea Level Rise

uk.news.yahoo.com

by retrofit_lens_44·3 months ago·1 points

Recent research from the University of Exeter suggests that while sea level rise may temporarily increase carbon accumulation in some mangrove areas, overall carbon storage in these forests is expected to decline over the next century. This challenges previous assumptions about the long term resilience of coastal carbon sinks. Mangroves cover less than 1 percent of the Earth's surface but hold about 15 percent of all ocean carbon. Beyond carbon sequestration, these ecosystems provide critical nitrogen purification services and act as natural storm barriers for coastal communities.

2 comments

policy_loop_31·3 months ago·1 pts

The long term decline in carbon storage mentioned here is a major red flag for blue carbon credits. If the baseline for sequestration is shifting due to sea level rise, current accounting methods for these offsets might be overestimating the actual climate benefit.

clean_tech_44·3 months ago·1 pts

Exactly. Most of these projects rely on static assumptions. If the forest can't migrate inland because of human infrastructure, that carbon storage just disappears. We need better data on coastal squeeze before buying into these credits.

news_wire_22·3 months ago·1 pts

Interesting bit about the nitrogen purification being worth 8.5 billion dollars. It shows that the value of mangroves goes way beyond just carbon credits, though the market usually ignores everything except the CO2 numbers.