The theme of World Environment Day 2014 was "Small Islands and Climate Change." This means that the focus of the day was on the impact of climate change specifically on small islands.

Option 1, "Green Economy Does it include you?", would be a valid theme for a different year but not for World Environment Day 2014. This option suggests a focus on the inclusion of individuals in the green economy, which refers to sustainable economic activities that promote environmental protection and social well-being.

Option 2, "Think. Eat. Save", is not the correct theme for World Environment Day 2014. This theme is more related to sustainable food consumption and reducing food waste.

Option 3, "Many Species. One Planet. One Future", is also not the correct theme for World Environment Day 2014. This theme focuses on biodiversity conservation and the importance of protecting multiple species on our planet.

Therefore, the correct theme for World Environment Day 2014 is indeed option 4, "Small Islands and Climate Change."