Jess: final total after 14 days. Her total CO2 emissions from social media over the observed 14-day period was 560.44 grams, the equivalent of driving 2.4 miles.

Erin: final total after 14 days. Her total CO2 emissions from social media over the observed 14-day period was 538.16 grams, the equivalent of driving 2.3 miles.

Cooper: final total after 14 days. His total CO2 emissions from social media over the observed 14-day period was 425.28 grams, the equivalent of driving 1.8 miles.

Tom: final total after 14 days. His total CO2 emissions from social media over the observed 14-day period was 720.48 grams, the equivalent of driving 3.1 miles.

Tash: final total after 14 days. Her total CO2 emissions from social media over the observed 14-day period was 553.8 grams, the equivalent of driving 2.4 miles.

Jess: totals after day 13

Erin: totals after day 13

Cooper: totals after day 13

Tom: totals after day 13

Tash: totals after day 13