Includes bibliographical references and index.

Where we find clues about climate change. What is science? Hypotheses, theories, facts and beliefs -- Inspired by students 100 years ago, students record the seasons -- Birds give us clues as they respond to a warmer world -- Clues from flowers- early bloomers -- Butterflies change their range -- Students help scientists collect data on butterflies -- Clues from the tropical rainforest -- Tree rings tell stories of the past -- In the north, evidence that the forest is changing -- Cool clues on the tundra -- Penguins and polar bears in a changing world of ice -- Ice caps and glaciers- a lot of melting going on -- Changing evidence from the ocean "conveyor belt" -- Student and scientist partners discover clues in Siberia -- Coastlines shift from sea to rising sea -- The earth is breathing- measuring COb2s -- Ancient mud reveals clues from the bottom of the ocean -- Time is frozen in ancient ice cores -- Fitting the clues together. Earth's astonishing web of life -- "Number crunchers" and the 1000-year temperature chart -- What scientists and you can do. The weather RATS learn to observe and record climate data -- Taking charge of your "climate footprint" -- The power of friends and community -- What you- and a million kids- can do -- Scientists communicate with citizens of the world -- A scientist speaks out -- The role of government and you- success stories -- Resources. "This volume describes where scientists look to find evidence of climate change--from changes in bird migration patterns and fruit blossom dates, to obtaining tree rings and mud cores--and especially how students and other citizen-scientists are assisting to monitor climate change, as well as what can be done to mitigate global warming"--Provided by publisher.