How much money do you have in your piggy bank? Have you ever used an automatic teller machine (ATM) or a pay wave card? How are coins made? Which country uses giant, heavy stones as currency? In Currencies of the World, find out where money comes from, how it is used, what the word economy means, how you can spot counterfeit banknotes and much more. Learn about money from the early days of trading furs and tools, to modern banking and stock markets.

Though still hotly debated by some,
global warming is now an accepted fact in the wider
scientific community. The average temperature of
the Earth is clearly getting warmer. As scientists
work to develop accurate models to predict the full
impact of global warming, researchers, policy makers
and industry leaders are attempting to understand
and agree on what can be done to minimize or even
reverse the impact of human contributions to global
climate change.
Volumes in the new Confronting Global Warming
series explore in detail the range of current and
impending challenges the planet faces as a result of
global warming. Climate change potentially affects all
aspects of modern life, from weather and agriculture
to health and politics. The series examines these
issues from a variety of expert perspectives, highlights
key future challenges, and addresses the pros and
cons of potential solutions -- all in a clear, unbiased
manner. Confronting Global Warming is the perfect
resource for students needing up-to-date, authoritative
information on what may be the most significant issue
of our time.