Final answer:
The negative impact of emigration on the country of origin from the provided options is brain drain, as it leads to loss of skilled and educated individuals.
Step-by-step explanation:
Among the options provided, the one that could be included in a list of negative impacts of emigration on the country of origin is brain drain. Brain drain refers to the situation where a country loses its most educated and skilled workforce to other countries, which can hamper the home country's development and adversely affect its economic prospects. This is contrasted by the other options: a population increase is not a consequence of emigration, remittances represent financial gains for a country of origin due to money sent back by emigrants, and increased GDP is typically a positive economic indicator not associated with the detrimental effects of emigration.