The ancient mariners need beach temperatures that are just right to hatch their eggs. If it's too warm, only females are born - and a species could vanish.
Biological corridors, such as one planned from Panama to Mexico, would let species migrate to safer climates as global warming heats up their old habitats.
Monitor contributor Moises Velasquez-Manoff set down some on-the-spot observations as he and Monitor photographer Andy Nelson traversed this tiny Latin American country investigating the effects of climate change.
A resilient ecosystem can better withstand global warming and will deliver what humans need, whether it's abundant tuna from the seas or fresh water tumbling down a mountainside.
With 1.3 billion music files pirated by college students last year, schools are turning to technology to curb the practice. Congress watches with interest.
