Résultats Éditeur "Ascent Audio" dans Nature et écologie

When you turn on the tap or twist the cap, you might not give a second thought to where your drinking water comes from. But how it gets from the ground to your glass is far more complex than you might think. Is it safe to drink tap water? Should you feel guilty buying bottled water? Is your water vulnerable to terrorist attacks? With springs running dry and reservoirs emptying, where is your water going to come from in the future? In Drinking Water, Duke professor James Salzman shows how drinking water highlights the most pressing issues of our time.

Something's gone badly awry with environmentalism. We faithfully separate our waste into different streams, but wonder whether it really makes a difference. Global companies announce their commitment to carbon negativity while simultaneously sponsoring oil conferences. American businesses, communities, and individuals assiduously measure their carbon footprints, then implement voluntary emissions-reduction programs, all while trumpeting their do-gooderism. The problem is, none of this will make a dent in solving the civilizational threat of climate change.

The story of evolution as you’ve never heard it before. What’s the easiest way to tell species apart? Check their genitals. Researching private parts was long considered taboo, but scientists are now beginning to understand that the wild diversity of sex organs across species can tell us a lot about evolution. Menno Schilthuizen invites listeners to join him as he uncovers the ways the shapes and functions of genitalia have been molded by complex Darwinian struggles.