Climate experts tell us our planet will get warmer and sea levels will rise, and extreme weather will occur more often and with greater intensity. They predict that some places will get wetter and others more arid, that ice will melt and currents shift.
Every winter, what sounds like a pack of baying hounds fills the air at Bosque del Apache National Wildlife Refuge in New Mexico. It’s not dogs, though, but birds—snow geese by the thousands, making loud, nasal, single-syllable honks.
If you look toward the eastern horizon just before dawn on a clear moonless night, you should see a ghostly white glow shining up through the dark sky. This is zodiacal light, caused when passing comets and colliding asteroids shed space dust. That dust scatters sunlight upwards well before sunrise.