Non-technical summary:
We summarize what we assess as the past year's most important findings within climate change research: limits to adaptation, vulnerability hotspots, new threats coming from the climate–health nexus, climate (im)mobility and security, sustainable practices for land use and finance, losses and damages, inclusive societal climate decisions and ways to overcome structural barriers to accelerate mitigation and limit global warming to below 2°C.
Technical summary:

Covering 41% of Earth's land, drylands are home to nearly 2 billion people relying on forests, rangelands, and agrosilvopastoral systems for survival. These areas provide crucial environmental services, supporting biodiversity, preventing erosion, averting land degradation, enhancing water infiltration, and boosting soil fertility. Amid global change, they serve as resilient landscapes and communities.

Rangelands in Tunisia, spanning approximately 5.5 million hectares, play a vital role in providing about 30% of livestock feed. However, widespread overexploitation, including overgrazing and wood cutting, has led to degradation and reduced productivity. To address this, a training initiative focused on rangeland survey, management, and restoration was conducted under the Livestock and Climate Initiative of OneCGIAR. The objective was to enhance the capacity of engineers and technical staff from relevant institutions.

Over the past century, the world has experienced an unprecedented surge in population growth, accompanied by a significant increase in economic activity and fuelled by an intensive utilization of natural resources, including water. This phenomenon has brought about profound alterations in land cover and land use patterns across various regions. Knowledge of land use changes is key to unlocking an understanding of water use changes and associated impacts on water resources, and potential threats to sustainability.

This research examines the relationship between soil inequalities, gender disparities, and health outcomes in Guatemala. The historical context of land concentration, limited access to land, internal conflict, and socioeconomic factors contribute to soil inequalities, which in turn affect household gender dynamics and health outcomes. Using a case study approach in San Martin Jilotepeque, Guatemala, this research examines the challenges faced by male and female farmers in managing their soil.

Ecosystems provide a variety of ecosystem services and functions for mankind, and their sustainable use plays an important role in livelihoods. However, the resulting land degradation due to land use and land cover changes leads to loss of valuable ecosystems and associated ecosystem functions and services. This study takes two highly degraded watersheds, Aba-Bora and Guder, in Ethiopia and uses the value transfer valuation method to estimate changes in ecosystem service values.

Traditional farming systems across much of Sub-Saharan Africa have greater organic inputs near to the homestead than in fields further away. This is likely to produce a fertility gradient that impacts production capacity, and so provides an opportunity to explore impacts of organic amendments on soils. Across 198 farm plots in 69 households in Halaba, Southern Ethiopia, we investigated the influence of different organic input systems on soil properties.

Abstract Flooded savannas are valuable and extensive ecosystems in South America, but not widely studied. In this study, we quantify the spatial distribution of soil organic carbon (SOC) content and stocks in the Casanare flooded savannas. We sampled 80 sites at two soil-depth intervals (0-10 and 10-30 cm), where SOC values ranged from 0.41% in the surface and 0.23% in the sub-surface of drier soils to over 14.50% and 7.51%, in soils that experienced seasonal flooding.

presentation about Bush encroachment that poses a pervasive challenge to Sub-Saharan Africa's rangelands, impacting ecosystem dynamics, biodiversity, and local livelihoods. This study comprehensively analyzes bush encroachment in the region, exploring its causes, impacts, and management strategies. Climate change, driven by global factors like fossil fuel combustion and deforestation, intensifies the greenhouse effect, contributing to encroachment. Land use practices, such as overgrazing and invasive species, further spur woody vegetation expansion.

Background

Policy Implications (Support the proper sectoral integration of SLM efforts by mainstreaming SLM strategies into national and subnational strategies, plans, and programs; Stimulate public/private funding for SLM interventions and their sustainability, generating multiple environmental and development benefits; Encourage the design and implementation of studies to assess SLM interventions’ cost-effectiveness, social benefits, and trade-offs; Encourage the design and implementation of socioeconomic and livelihood impact studies to understand social acceptance and direct/indirect benefits; a

Anthropogenic activities profoundly impact soil organic carbon (SOC), affecting its contribution to ecosystem services such as climate regulation. Here, we conducted a thorough review of the impacts of land-use change, land management, and climate change on SOC. Using second-order meta-analysis, we synthesized findings from 230 first-order meta-analyses comprising over 25,000 primary studies.