Environmental concerns have been risen in Spain after the population of pigs has outnumbered the number of humans in the country. Spain's environmental ministry has released figures revealing there are now 50 million pigs to 46.5 million humans, which raises concerns for the Spanish pork industry's greenhouse gas emissions, water usage during drought, and contamination of groundwater. The pig population has seen a growth of 9 million since 2013, and numbers are continuing to rise.