Namibia is in the middle of its worst drought in 30 years. This is what it looks like on the ground.

The United Nations Children's Fund released this short video from Namibia, a country in southwestern Africa that's twice the size of California, documenting the effects of the country's most severe drought in decades. It's a national emergency, and the United Nations is getting involved.

Here are a few facts about what's happening in Namibia right now:

• With crops drying up, there are 780,000 people, or one in three Namibians, officially classified as "severely or moderately food insecure," which means that they can't count on consistent access to food.

• The statistic above includes an estimated 105,000 children under age 5.

• Hunger is already a problem for Namibian children, 29 percent of whom have stunted growth for want of sufficient nutrition. That affects permanent physical and mental development.

• As many as 400,000 people may be at risk of going hungry, up from 300,000 in May.

• The government warns that there may not be enough water for the country's people, much less its livestock, which could lengthen the crisis.

• Aid groups say they are underfunded.

• Namibia is normally very dry and so it is especially susceptible to the effects of climate change. Mark Leon Goldberg, who writes the blog UN Dispatch, called the drought there "yet more evidence that the poorest people on the planet are most vulnerable to global climate change."