Radio can be a lifeline for women: a place to speak out in safety; a place to find their voices. We hear from women taking to the air and making waves in the cracks left by the Taliban in Afghanistan; in Fiji's scattered archipelago threatened by climate change; in the migrant farmworker community of the Yakima Valley in North America's Pacific north-west; and in the Ecuadorean Amazon, where indigenous women are coming together to save their land from pollution and destruction by oil companies.