A GMO, or genetically modified organism, is a plant (predominantly) that has been altered using biotechnology to carry genes that express a desired trait, such as herbicide resistance.

The World Bank defines “extreme poverty” as living on $1.25 or less a day.

Humanitarian aid is given to meet the immediate needs of victims of disasters or violence. It can include food, water, medical supplies, tents, and other things required by those affected by everything from typhoons to civil wars.

Malaria is a potentially fatal disease spread to humans by infected mosquitoes. It occurs mostly in sub-Saharan Africa and Southeast Asia. Symptoms include fever, headache, and vomiting.

Meatless Monday is a weekly initiative that encourages conscientious eaters to scale back meat intake by eating vegetarian or vegan one day a week.

Ebola is a virus that kills as many as 90 percent of those it infects. It is transmitted to humans from wild animals and spreads through contact with infected bodily fluids or organs.

Foreign aid is money, materials, and services given or loaned by governments, organizations, and individuals in rich countries to help people in poor countries.

The Millennium Development Goals are a set of targets in improvements to global living standards that the United Nations member states have pledged to achieve by 2015.

Solar panels convert the sun's rays into electricity.

A carbon footprint is the amount of greenhouse gases produced by a particular human activity.