气候变化

A new study reveals that SAR11, the most abundant bacteria in the world's oceans, may be hindered by their own adaptations to nutrient-poor environments. Under stress, these microbes experience cellular failures that limit their growth, potentially affecting ocean ecosystems amid climate change. Researchers from the University of Southern California highlight this as a key weakness in these dominant lifeforms.

February 02, 2026 由 AI 报道

Egypt hosted an introductory workshop for the Intergovernmental Panel on Climate Change (IPCC) on Monday, underscoring its efforts to strengthen the role of Global South scientists in producing climate knowledge and informing evidence-based policymaking. The event was opened by Acting Minister of Environment Manal Awad as part of Egypt's push to develop its national adaptation plan, supported by the United Nations Development Programme (UNDP) and the Green Climate Fund.

Heather Terry, founder and CEO of GoodSAM Foods, is reshaping the global food system by forging direct ties with smallholder farmers amid climate challenges. Her company sources 90% of ingredients from farms in Latin America and Africa, reinvesting profits into communities. Terry emphasizes relationships over traditional certifications to build a resilient supply chain.

January 26, 2026 由 AI 报道

Solar geoengineering might reduce the economic impacts of climate change, but abruptly halting it could trigger a rapid temperature rebound known as termination shock, potentially causing greater damage than unchecked warming. Researchers warn that this risk underscores the need for sustained international cooperation. Without emission cuts, global temperatures could rise 4.5°C by 2100, leading to $868 billion in damages.

Experts have stressed that updating Egypt's agriculture law is an urgent necessity due to escalating challenges like water scarcity and climate change impacts. The call came during a workshop closing a project to enhance the private sector's role in Upper Egypt's agriculture. Participants emphasized the need for legislative frameworks to bolster food security and resource efficiency.

January 22, 2026 由 AI 报道

President Donald Trump's insistence on acquiring Greenland has raised alarms about the island's status as a model for indigenous self-determination. The largely Inuit population, which has achieved significant autonomy from Denmark, views the U.S. overtures as a direct challenge to their sovereignty. Historians draw parallels to past patterns of American expansionism toward native lands.