Hundreds of millions of city dwellers breathe air so polluted with chemicals, smoke and particles that it dramatically exceeds World Health Organization limits with major impacts on health and the environment.

Current rates of tapping frankincense - which according to the Bible was given to the baby Jesus by the three wise men at Christmas and which will feature in thousands of Nativity plays in coming days - are endangering the fragrant resin's sustained production, ecologists have warned.

Appalachian hardwood forests may be getting a respite from acid rain but data from a long-term ecological study of stream chemistry suggests that the drop in acid rain may be changing biological activity in the ecosystem and hiking dissolved carbon dioxide in forest streams.

The Southern Ocean may slow the rate of global warming by absorbing significantly more heat and carbon dioxide than previously thought, according to new research.

Connect one pendulum to another with a spring, and in time the motions of the two swinging levers will become coordinated

The following research and reviews will appear in the December issue of Frontiers in Ecology and the Environment.

The theory of coupled oscillators may shed light on problematic ecological questions, such as the number and types of species in an ecosystem