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Streamflows in the West—relied on for drinking water and to support farms—once followed a predictable arc as winter snow melted, but rising temperatures are changing that. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Imtiaz Rangwala on The Conversation.

Ehrlich warned that overpopulation would trigger famine, conflict and nuclear war in the 1970s—ideas that continue to echo in debates today. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Brian Keegan and a UC Davis colleague on The Conversation.

News that Iran had fired ballistic missiles at a U.S. military base in the Indian Ocean was startling, but how much of a threat does the development represent? Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Iain Boyd on The Conversation.

Concerns about shortages of interceptor missiles in the conflict between the U.S. and Iran highlight the challenges of defending against missiles and drones. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Iain Boyd on The Conversation.

In an era of family-friendly workplaces, how can employers treat single people without kids fairly? Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Peter McGraw on The Conversation.

The decline goes beyond national trends and is tied to a neighborhood coalition that identified risk factors for youth violence and prevention strategies. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Beverly Kingston on The Conversation.

While a young language learner can more easily acquire a native accent, adults retain the ability to learn new languages well into later life. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Karen Stollznow on The Conversation.

Heavy metals, phthalates and other potentially harmful chemicals have been detected in a range of menstrual products. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Jenni Shearston on The Conversation.

An avalanche killed at least eight skiers on a guided backcountry excursion near Lake Tahoe. Â鶹Ãâ·Ñ°æÏÂÔØexpert Nathalie Vriend explains what happens in an avalanche and shares survival techniques—read on The Conversation.

Goldenberg's Peanut Chews, Goobers and Whitman's Sampler boxes of chocolates are just a few confectionary classics that were born in Philly. Read from Â鶹Ãâ·Ñ°æÏÂÔØexpert Jared Bahir Browsh on The Conversation.