When many of us think of oil spills, we might think of an oil tanker running aground and spilling its contents into the ocean, as in the case of the oil tanker Exxon Valdez when the ship ran aground near the coast of Alaska in 1989.

After oil spills into the ocean, NOAA studies the impacts to animals and plants, but we also make sure to measure the direct impacts to people's use of nature. This is all part of the Natural Resource Damage Assessment process, which makes up for those impacts. Humans can value environmental quality just for its existence (think of remote mountains and pristine beaches)

Imagine yourself preparing for your next trip to the beach. The sun is shining and you drive with excitement to your favorite spot on the coast. But when you arrive, instead of being welcomed by clean sand and blue ocean waves, you see a thick black sludge washing over both beach and birds. What happened?

If you ever wondered how oyster reefs are built, it involves a team of dedicated experts and a water cannon. Over the last month, barges have blasted 100,000 bushels of small fossilized oyster shells, called oyster hash, into the Eastern Branch of Virginia’s Elizabeth River. Oyster hash is normally shipped abroad for use as chicken feed, but now it’s laying the foundation for a restoration project that will help the river recover from pollution.

Whenever oil is transported there is a risk of accidents and spills, but the 40 years since the Argo Merchant oil spill have seen improvements in laws, shipping technology and spill response.

Tankers today are much safer, but they are also much larger. The Argo Merchant was carrying about 8 million gallons of oil, while modern tankers can carry 10 times that amount. A large spill is a rare event, but the impacts are still potentially catastrophic.

On Aug. 18, 1990, President H.W. Bush signed the Oil Pollution Act. The act gave NOAA and other agencies improved authorities for spill prevention, response, and restoration in the nation’s navigable waters and shorelines.

After every major oil spill, one question comes up again and again: Who is going to pay for this mess? While the American public and the environment pay the ultimate price (metaphorically speaking), the polluter most often foots the bill for cleanup, response, and restoration after oil spills. In sum: You break it, you buy it.

Before the Exxon Valdez oil spill and the Oil Pollution Act of 1990 that followed shortly after, the Deepwater Port Act of 1974 (DWPA) provided guidance for deepwater port structures used for the import and export of oil and natural gas, including conditions to minimize adverse environmental impacts.

This new law resulted in NOAA’s Deepwater Ports Project Office — an early predecessor to NOAA’s Office of Response and Restoration and the start of OR&R Senior Economist Norman Meade’s 43 year career with NOAA.