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Carbon-13 - PLOS

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Last Updated: 10 September 2022

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High nutrient loads amplify carbon cycling across California and New York coastal wetlands but with ambiguous effects on marsh integrity and sustainability

Eutrophic conditions in estuaries are a globally important stressor to coastal ecosystems, and they have been cited as a source of coastal salt marsh loss. In terms of measured outcomes, the effects of eutrophic conditions on carbon cycling were abundant, but it was unclear if high nutrient loads were having negative impacts on long-term marsh sustainability. Although high nutrient exposure marshes had elevated rates of decomposition and soil respiration rates, high nutrient exposure was also associated with increased belowground growth and lower sulfides, which could contribute to increased marsh sustainability. Although this research does not determine the degree to which nutrient loads are negatively affecting these salt marshes, we do illustrate functional differences between Atlantic and Pacific wetlands, which may be useful in investigating coastal marsh health and stability.

Source link: https://doi.org/10.1371/journal.pone.0273260


Revealing the transmission mechanism and spatial spillover of carbon emission reduction caused by high-speed rail opening

It is of utmost importance to investigate the impact of the opening of high-speed rail in China's context, with carbon reduction goals set forth by 2030 and carbon freeness by 2060, as well as its pledge to build a healthy transportation sector. According to Indirect mechanism analysis, the opening of HSR could minimize carbon pollution by technological means, structural effect, and opening effect. The scientific spillover effect confirms that the opening of HSR not only in node cities but also in neighboring cities.

Source link: https://doi.org/10.1371/journal.pone.0271585


Does governance impact on the financial development-carbon dioxide emissions nexus in G20 countries

Although people's perception of climate change has risen, the United States has yet to see a dramatic decline in pollutant pollution, and thus getting to the root causes is critical. This paper is based on the STIRPAT model framework and uses panel results from G20 countries during the period 1999-2013 to investigate the impact of financial growth on carbon pollution under good governance. Moreover, according to the combined findings of industrial and emerging countries, different nations should adopt differentiated plans in growth financing to achieve the carbon reduction goals set by the G20. Policymakers should improve environmental quality by optimizing the quality of governance while shifting their focus toward environmentally sustainable financial activities to foster financial growth to raise environmental quality in light of this.

Source link: https://doi.org/10.1371/journal.pone.0273546


Capitalizing on the global financial interest in blue carbon

Natural climate solutions are fundamental steps to assist countries and companies in meeting their net-zero carbon dioxide goals. The science of blue carbon is now clear, and businesses and individuals alike are keen to minimize greenhouse gas emissions that they would otherwise minimize. Despite this ardent interest and demand, the number of blue carbon credits remains small. Several market-related problems currently hinder the implementation of blue carbon schemes and the selling of resulting credits, including the cost and difficulty of proving blue carbon compared to establishing carbon credits in other ecosystems, the general small scale of current blue carbon projects, and double counting credits between commercial and national institutions. Ultimately, a series of financial products will be needed in order to create financing streams that are robust and reliable enough to fully appreciate the potential of blue carbon ecosystems as a natural climate solution.

Source link: https://doi.org/10.1371/journal.pclm.0000061

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions