Dangerous Heat Warnings Across U.S. States Test Whether Public Health Alert Systems Reach Those Most at Risk

Dangerous heat warnings are in effect across multiple U.S. states this week as temperatures combine with high humidity to produce heat index values that pose immediate risk to human health. The alerts are timely — but the question public health authorities face is whether warning systems are actually reaching the people most likely to die from this heat, and whether the resources to help them are in the right places. Heat kills

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Syngenta's Gramoxone—a paraquat-based broad-spectrum herbicide used widely across Australian farms—will be pulled from shelves by December 2026, with companion products Spray Seed and Kelpie following by May 2027. The exit arrives at a critical juncture: 1 in 5 Australian paddocks is already fighting glyphosate-resistant weeds, and the next viable alternative, glufosinate, takes days longer to act and costs more per application. [Photo source: Agricultural documentation]

Syngenta Ends Paraquat Sales: Australian Farmers Seek Herbicide Alternatives

Syngenta stops paraquat sales in Australia by May 2027 due to regulatory costs. 1-in-5 paddocks face glyphosate resistance. Glufosinate emerges as primary alternative. GRDC funds herbicide research trials.

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