Super Lights Out vs EXTREMA Global

A simple app to measure your reaction time.

EXTREMA Global is a science-based mobile application that provides information on hot summer days, helping users better understand heat exposure and make informed decisions during periods of elevated temperature stress. Extreme heat is one of the most pressing climate-related risks worldwide, particularly in urban areas. EXTREMA Global translates advanced environmental data into clear, accessible insights that support safer everyday activities during hot conditions. What EXTREMA Global offers • Location-aware insights Heat information is tailored to the user’s location, reflecting local environmental conditions. • Clear guidance for heat awareness Practical, easy-to-understand information supports better awareness and precautionary behaviour during extreme heat events. • Cooling spaces awareness Identify nearby cooling spaces, such as shaded areas or publicly accessible cool locations, to support safer movement and short stays during hot conditions. • Cool routes guidance Explore routes that aim to minimise heat exposure by prioritising shaded streets and cooler urban areas. • Science-driven design The app is developed by a research organisation, building on validated environmental data and established scientific methodologies. Who the app is for EXTREMA Global is designed for: Citizens seeking reliable information during hot summer days Professionals working outdoors Local authorities and organisations interested in situational awareness Anyone wishing to better understand heat exposure in their area At the moment the app is available for Athens, Paris, Milan and Rotterdam. Transparency & trust EXTREMA Global does not provide medical advice. It is an informational tool intended to support awareness and preparedness during extreme temperature events. Data sources and methodologies follow scientific best practices, ensuring reliability, clarity, and responsible communication of heat risk.