Analyses in 2024

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  • The energy sector has led to the creation of marine artificial structures such as oil and gas installations and offshore wind farms. This global meta-analysis assesses whether such structures can act as artificial reefs and benefit the marine environment when left at sea following decommissioning.

    • Anaëlle J. Lemasson
    • Paul J. Somerfield
    • Antony M. Knights
    AnalysisOpen Access
  • Landfills are a major methane emitter, but the current bottom-up inventories used for emissions accounting are poorly constrained and show strong biases. Improved emissions estimates show that across the globe, methane emissions from individual landfills have been underestimated by up to 200%.

    • Yao Wang
    • Mingliang Fang
    • Xunchang Fei
    Analysis
  • Using decades of high-resolution mapping, this study tracks the land area of the wildland–urban interface that is exposed to fire risk, finding increases in both area and risk in multiple locations globally.

    • Bin Chen
    • Shengbiao Wu
    • Peng Gong
    Analysis
  • Cookstove carbon offset projects can contribute to various socio-economic and environmental goals if their implementation is based on accurate emissions reductions estimations. A study assesses different methodologies for cookstove offset projects and quantifies their over-crediting.

    • Annelise Gill-Wiehl
    • Daniel M. Kammen
    • Barbara K. Haya
    Analysis
  • Hydropower is expected to expand in the coming decades as an attractive renewable energy source, but one that can have negative environmental impacts in sensitive ecosystems. Enhanced integration of variable renewable energy can offset hydropower expansion in some eco-sensitive river basins, but is mostly insufficient to offset the steep upward pressure on hydropower development that will be exerted by the low-carbon energy transition.

    • A. F. M. Kamal Chowdhury
    • Thomas Wild
    • Jonathan Lamontagne
    Analysis