Who's responsible for roadside rubbish?

New research reveals that items in litter typically originate less than two miles from where they're found—and unless humans remove them, most of these items will never leave the environment.

Predicting famines using rainfall season start

The first rains that signal the beginning of the growing season kick off a flurry of activities in rural, agricultural communities. Farmers decide when to plant, how much labor to allocate, how many resources to devote to ...

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