Being a mom is hard - the heat is making it harder

Key Points:

• A new study published in Science Advances reveals that 560 million children under age 10 globally are experiencing at least one additional month of heat stress annually due to climate change, disproportionately affecting young children compared to older age groups.
• Extreme heat warnings, like those in Southern California with temperatures reaching up to 110°F, are forcing families to stay indoors, limiting outdoor activities and increasing challenges for new parents, especially those breastfeeding.
• Children are more vulnerable to heat stress because of their physiology, including higher surface area-to-body mass ratios and underdeveloped sweat glands, making heat-related illnesses like dehydration and heat stroke a significant risk.
• The greatest increases in heat stress occur in countries in the Global South, which have younger populations and less access to cooling infrastructure despite contributing least to climate change, exacerbating socio-political inequities.
• Preventing further heat stress depends on reducing planet-heating emissions by shifting to renewable energy sources, while parents must take precautions such as keeping children hydrated and indoors during extreme heat to protect their health.