Field notes

Clema Blog

What actually keeps crews working when the heat climbs past 100°F. The research, the standards, and the gear that holds up, from the people building it.

Construction crew working on a formwork deck in direct summer heat, a setting covered by the OSHA Heat National Emphasis Program

Aug 9, 2026, by Anna B. Albright

OSHA Heat Inspections in 2026: What the Updated NEP Means for Your Site

The federal heat rule is still not final. The enforcement program behind it was renewed on April 10, five years, 55 industries, and inspections that now trigger on the weather forecast.

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Worker at a loading dock wearing a Clema active cooling vest under a hi-vis vest

Aug 9, 2026, by Anna B. Albright

Best Cooling Vests for Workers: A 2026 Guide by Job Type

There is no single best cooling vest, and any list that names one is selling something. What construction, warehouse, military, and plant work each actually require.

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Illustration of body heat radiating from the chest and core, showing where a wearable cooling device works

Jul 23, 2026, by Clema Research

Do Wearable Cooling Devices Actually Work?

We read the peer-reviewed studies so you don't have to. Some cooling vests deliver exactly what they promise. Others fall apart the moment the air gets humid. Here is where the evidence actually lands.

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Oil refinery at dusk in extreme heat, the kind of prolonged heat exposure linked to dysautonomia

Jul 20, 2026 · By Anna B. Albright

Heat and Dysautonomia: Why Temperature Breaks Autonomic Regulation

For some bodies, heat does not just feel bad. It hijacks the nervous system that keeps you upright. Here is who carries that risk, and what the evidence says actually helps.

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Oil and gas worker laboring in extreme heat at sunset during a multi-day heat wave

Jul 14, 2026, by Clema Research

Why Consecutive Hot Days Are More Dangerous: New Stanford Research Explained

The second hot day is deadlier than the first. New Stanford research shows back-to-back heat nearly doubles the risk, and points to the gap most heat plans still miss.

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Industrial work crew in summer heat, the kind of full shift a cooling vest has to last

May 30, 2026, by Anna B. Albright

How to Choose a Cooling Vest for Your Crew: A 2026 Buyer's Guide

Most crews buy the wrong vest because they trust the catalog spec instead of the shift. Seven numbers actually decide it. Here is how to read them before you spend a dollar.

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Construction worker overheating on an industrial site in extreme heat

May 30, 2026, by Clément Messeri

How Does a Cooling Vest Work? PCM, Evaporative & Active Cooling Explained

Four kinds of cooling vest, four completely different ways to quit on you. A plain-English look at how each one works, and which is still cooling when the thermometer passes 100°F.

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Industrial floor fans failing to cool workers in extreme heat

Nov 17, 2025, updated Feb 17, 2026, by Anna B. Albright

Industrial Cooling Is Broken: Why Cooling Vests Can't Handle Today's Extreme Temperatures

Ice melts. Water stops evaporating. Packs run out halfway through the shift. The cooling gear crews depend on was never built for today's heat. Here is what has to replace it.

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Construction site with tower cranes at sunset under OSHA heat exposure limits

Dec 9, 2025, updated Feb 17, 2026, by Anna B. Albright

What are the new OSHA heat requirements?

At 80°F the clock starts. At 90°F the rules change again. What the new OSHA heat triggers really require of your site, and six moves that keep you ahead of them.

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Workers on a hot manufacturing floor where indoor temperatures keep climbing

Nov 24, 2025, updated Dec 13, 2025, by Anna B. Albright

Why Manufacturing Floors Are Getting Hotter, and What Safety Leaders Can Actually Do About It

Your building works like a greenhouse, and the fans are just pushing hot air around. Why manufacturing floors keep getting hotter, and what the sharpest EHS teams are piloting right now.

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Worker on a desert pipeline using heat illness prevention practices in extreme heat

Feb 17, 2026, by Clément Messeri

Preventing Heat Illnesses: Effective Heat Illness Prevention Strategies for Workers

Nearly every heat illness is preventable, yet most programs still skip the same steps. The six that matter most, and the 85°F point where the real risk begins.

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Close-up of active thermal cooling technology used in industrial cooling gear

Nov 17, 2025, by Anna B. Albright

Industrial Cooling Gear Explained: What Actually Works Above 100°F

Somewhere between 85 and 100°F, both safety and output start to slide. What actually pulls the heat back on an industrial site, in five steps, and why the gear pays for itself.

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