Rising seas could ‘drown’ mangroves and release carbon
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Updates every hour. Last Updated: 21-Jun-2026 05:16 ET (21-Jun-2026 09:16 GMT/UTC)
A new international study is challenging a long-held belief about how ecosystems continue absorbing carbon under global warming. Scientists found that carbon uptake increased during recent decades, but not primarily due to plants adapting to higher temperatures, as previously thought. Instead, the increase is largely driven by plants using water more efficiently while at the same time developing larger tree and crop canopies giving plants more leaf area to absorb light and fix carbon. These factors appear to matter much more than temperature adaptation to determine how much carbon dioxide ecosystems can absorb in a warming world.
For the first time, AWI researchers have performed a detailed calculation of the amount of carbon stored in permafrost in Arctic river deltas. In a new study in the journal Nature Communications, they point out the risks endangering the storage function of these highly sensitive landscapes due to rapid climate change.
Europe’s food system is under growing strain from climate change, environmental pressures, and rising levels of diet-related disease. Although the EU has set ambitious goals for a greener, healthier, and more competitive and resilient agrifood system, progress remains slow. A new perspective published in Nature Food examines this gap between ambition and reality and identifies the structural barriers holding transformations back.
The study is the first output of a new European research alliance, bringing together researchers from, among others, Aarhus University in Denmark, Wageningen University & Research in the Netherlands and the French National Research Institute for Agriculture, Food and Environment (INRAE). Drawing on contributions from 34 researchers, it takes a system-wide perspective on the agrifood system, from production to consumption.
The researchers argue that the challenge is not only a lack of knowledge or willingness to change. Many actors across the food system, like farmers, policymakers, and consumers support reform. However, they operate within “lock-ins”: self-reinforcing systems of incentives, regulations, market structures, and habits that sustain the status quo.
Five key lock-ins are highlighted. First, fragmented policymaking leads to conflicting objectives across agriculture, health, environment, and trade. Second, dietary habits are difficult to shift, as cultural norms, prices, and availability often favor less sustainable food choices. Third, market structures emphasize efficiency, scale, and low costs, discouraging long-term investments in sustainability. Fourth, environmental costs such as emissions and biodiversity loss are not reflected in food prices, limiting the competitiveness of sustainable alternatives. Finally, increasing instability from climate change to geopolitical shocks exposes the fragility of a system optimized for efficiency rather than resilience.
Importantly, the authors propose five guiding principles for change in the agrifood system: prioritizing access to affordable, healthy and sustainable food; ensuring inclusive and engaging transformation processes; provide governance to strengthen transparency and accountability; leveraging Europe’s diversity in agrifood systems; and shifting mindsets towards prioritizing common goods.
The researchers emphasize that transformation will require more than technological solutions. Coordinated policy action, new incentives, and strong leadership are essential to unlock systemic change and move Europe’s food system forward.
Arctic and boreal ecosystems store enormous amounts CO2 but climate-driven disturbances—wildfires, drought and thawing permafrost—are rapidly transforming the landscape. Two studies address a major challenge; accurately mapping and measuring the region’s biomass. One paper reveals significant inconsistencies among widely used satellite-based biomass datasets and the other introduces a map that tracks 40 years of ecological change in unprecedented detail.
Diminishing periods of snow cover in northern forests, shortened by climate change, are poised to disrupt a delicate balance in some of the planet’s most climate-sensitive regions – according to new research from McMaster University, VU Amsterdam, and the Woodwell Climate Research Center.