A study of ancient lake sediments reveals that a recent wildfire high in the Rwenzori Mountains was the first in 12 millennia, signaling a novel threat to Africa’s unique alpine ecosystems.

A new study is the first to show that annual rainfall packed into bigger, wetter storms means less water for ecosystems and aquifers, even if total precipitation increases. The researchers report that annual rainfall for much of the world has condensed into heavier storms with longer dry periods since 1980. They project more consolidation due to climate change, with an increase of just 2 degrees Celsius bringing abnormally dry conditions to more than a quarter of the global population, even with more rainfall.

Global efforts to combat climate change often focus on what we can see: forests, renewable energy, and surface-level farming practices. A new analysis argues that one of the most significant battlegrounds in carbon sequestration lies hidden deep underground. A comprehensive review led by Professor Nanthi Bolan at The University of Western Australia consolidates global knowledge on deep soil carbon, the massive carbon reserve stored more than 30 centimeters below the surface, which has long been excluded from standard carbon accounting.

The paper provides a critical assessment of this enormous carbon sink, noting that deep soil layers (below 30 cm) contain over 850 petagrams of carbon worldwide. This accounts for approximately 50-60% of the total carbon stored in the top meter of soil. While surface soil carbon is closely tied to vegetation and is quick to respond to management changes, deep carbon dynamics are governed by different, more permanent factors.

Climate change is reshaping protected area management. A large-scale survey across Europe found that more than half of Natura 2000 protected area managers already perceive climate change as a threat to biodiversity, with the majority accounting for its impacts when planning management practices. However, perceptions vary between regions: managers in the Mediterranean region are more concerned than those in the Boreal region. Encouragingly, many managers are not only trying to resist the effects of climate change, but also dynamically adapting to it and acknowledging that it transforms ecosystems. The European Commission's new guidance also strengthens adaptation strategies for the Natura 2000 network. However, managers call for more actionable scientific knowledge and financial resources to implement these strategies.

When rain falls on snow in the Arctic, ice layers can form on top of and within the snowpack. This increasingly common dynamic can influence the ability of animals, including caribou and muskoxen, to forage and move across the landscape. That, in turn, affects the people who rely on wildlife for subsistence, culture, wellbeing and income. Given the widespread impacts of rain-on-snow events, Colorado State University researchers are studying and modeling their effects in Arctic systems. The work is especially important considering the rapid rate of climate change across the region

In a recent study of Amazonian forests, researchers from the South China Botanical Garden (SCBG) of the Chinese Academy of Sciences, in collaboration with Cornell University and several international research institutions, found that the residence time of carbon in Amazonian vegetation will continue to shorten as atmospheric drying intensifies and convective storm activity increases, thereby undermining the forests’ long-term carbon storage capacity.

Kyoto, Japan -- Every year in the West Pacific, as summer ends and September rolls around, typhoons are not far behind. Typhoons are the most impactful extreme weather events affecting Japan and East Asia, and due to climate change, extremely strong typhoons are becoming more frequent. In order to adapt critical infrastructure to these massive storms and protect coastal areas, accurate accounting for their future impact is essential.

Assessing the disaster risks of a typhoon season involves quantitatively predicting storm intensity and frequency, relying heavily on the characteristics of regional meteorological fields and natural variability inherent in the climate system. Though varying typhoon characteristics are related to sea surface temperatures -- SST -- probabilistic evaluations that account for SST have been insufficient.

This motivated a team of researchers at KyotoU's Disaster Prevention Research Institute to analyze typhoon intensity through spatial SST patterns. They combined a slab-ocean model with the Global Atmospheric Climate Model developed by the Meteorological Research Institute of the Japan Meteorological Agency, resulting in a unique simulation that successfully represents atmosphere-ocean interactions on a global scale.

It has been assumed that warming temperatures under climate change will boost agricultural pests. But a new study by UC Davis researchers based on field data from California and Spain suggests the effects will be more nuanced, depending on species, crop and location as well as temperature.