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Heat-related lost labor emerges as a major cost of carbon emissions

As the climate warms, people are more exposed to heat stress, which depresses productivity and the global economy. A study from the University of Cal…

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technology

Climate change is putting the squeeze on the world's grapegrowers

This year, the European summer has been sweltering. It is unprecedented in many ways, marked by extreme heat, drought and record-breaking fires. Acro…

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technology

Meta chief pushes back on AI slowdown calls

Meta CEO Mark Zuckerberg pushed back Tuesday against growing calls to pause or slow AI development, arguing that market incentives and legal liabilit…

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technology

How AI models decide not to answer a question

Large language models (LLMs), the artificial intelligence (AI) systems supporting the functioning of ChatGPT, Gemini and similar conversational platf…

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