1 The most abundant greenhouse gas, but importantly, it acts as a feedback to the climate. 2  Water vapor increases as the Earth's atmosphere warms, but so does the possibility of clouds and precipitation, making these some of the most important feedback mechanisms to the greenhouse effect. 3  Carbon dioxide (CO 2).
Also called elimination communication or natural infant hygiene, infant potty training is the practice of introducing your baby to the toilet or potty at a very early age â usually between birth and 4 months.
The age at which children are toilet trained hasn't always been the same. In the 1940s, for example, most toddlers began potty training before they reached 18 months of age, according to a 2008 report in American Family Physician.. White parents also tend to begin training later than African American parents.