Land-based measures could cumulatively reduce CO2 emissions (or their equivalents) by 8–13.8 billion metric tons every year between 20, or approximately 20–30 percent of the total mitigation needed to achieve the 1.5✬ temperature target.This is the definition of a win-win-win solution." "When we choose to purchase food that is produced regeneratively, adopt a plant-rich diet, and reduce the ridiculous amount of food that is wasted, it turns out that a large part of the climate crisis can be averted, food security for all people can be ensured, and massive deforestation would be avoided. "Preventing food waste and shifting to healthier, more sustainable-and still delicious-diets turns out to be crucial for achieving the 1.5✬ climate targets, ensuring future food security, and preventing continued degradation of ecosystems," Frischmann said. Livestock management measures laid out in the study, such as reducing enteric fermentation and manure management, and consumer measures that reduce food waste and shift to plant-rich diets, are crucial for curbing methane. Because methane only stays in the atmosphere for 10–20 years and is about 80 times more potent than carbon dioxide, mitigating methane emissions is a highly effective strategy for reducing warming in the near-term. The section to which Frischmann primarily contributed focused on consumer measures critical for reducing methane emissions, including plant-rich diets and reducing food loss and waste.Īs the recent IPCC report emphasized, methane is responsible for some 30–50 percent of the ~1✬ warming that we see today, about one-third of which comes from land. For many countries, they also provide the largest share of the low-cost mitigation needed to reach net zero emissions by mid-century and deliver on the Paris Agreement targets." "Many land-based mitigation activities are unique in that they can be rapidly implemented, provide additional environmental and socio-economic co-benefits, work in tandem with the decarbonization of other sectors-like energy, and are relatively low cost. "Our analysis shows which and how much nature-based solutions could be prioritized country by country," said Stephanie Roe, an environmental scientist at Climate Focus and the lead author of the study. They include the protection, management and restoration of forests and other ecosystems changes in agricultural practices soil carbon sequestration in croplands and grasslands use of bioenergy and demand-side measures within food systems, such as reducing food waste and shifting to more sustainable and less livestock-dependent diets. The study, published October 12 in Global Change Biology, analyzes 20 land-based measures that reduce greenhouse gas emissions or remove greenhouse gases from the atmosphere. A new study led by Climate Focus environmental scientist Stephanie Roe and including Project Drawdown senior director of Drawdown Solutions Chad Frischmann among its authors provides a comprehensive guide to the greenhouse gas mitigation potential and feasibility of land-based climate solutions for over 200 countries.
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