en.wikipedia.org/wiki/Saci_Lloyd#The_Carbon_Diaries:_2015

The article says the novel is a 2009 book, but the original UK edition predates that.

• Hachette Children’s UK, the book’s UK publisher, lists The Carbon Diaries 2015 as “ON SALE: 4th September 2008.”
• A Guardian review discussing the book was published in October 2008, which independently confirms the novel was already out in 2008.
• A separate Google Books record shows Holiday House, 2009, indicating that 2009 corresponds to a later edition/reprint, not the book’s original publication year.

So the safer, source-backed correction is that The Carbon Diaries: 2015 was first published in 2008, not 2009.

This infobox says the book’s publication date was February 2009, but that does not match the original UK publication record.

• The same page identifies the publication place as the United Kingdom.
• Hachette Children’s UK lists The Carbon Diaries 2015 as “ON SALE: 4th September 2008.”
• The Guardian also reviewed the Hodder Children’s Books edition in October 2008, confirming the UK edition was already available by then.
• A Google Books entry for Holiday House, 2009 suggests 2009 is tied to a later edition, not the original UK publication.

So for the UK edition described here, February 2009 is wrong; the book was on sale in the UK on September 4, 2008.