Carbon Shift: How Peak Oil and the Climate Crisis Will Change Canada (and Our Lives) is a 2009 non-fiction book edited by Thomas Homer-Dixon and Nick Garrison that collects six essays that discusses the issues of peak oil and climate change. The book was first published in hardcover by Random House of Canada in 2009 under the title Carbon Shift: How the Twin Crises of Oil Depletion and Climate Change Will Define the Future, and became a national bestseller.