Add a widget to Blogger

Instructions

1. From the Blogger Dashboard, select "Layout"
2. Select "Page Elements"
3. Select "Add Gadget"
4. Select "HTML/JavaScript" from the Basic list
5. In 'Edit HTML' mode, insert the widget HTML code from CO2Now

Thank you to Celtic Solar for these Blogger instructions.

Instructions from another sources:

whos.among.us | How to install a widget on Blogger 

More about CO₂ Widgets

CO2 Widget Design Options  |  CO2 widgets available for download from CO2Now.org

Help & Instructions  |  Widget help centre