statistics

0 comments on "How many container ships are there in the world?"

Shipping containers are measured in “twenty-foot equivalent units“, with the capacity of ships and warehouses given in TEU. As of ~2018 the largest containers ships can hold about 22,000 TEUs- and globally there are 5,222 ships as of April 2018 that can carry a total of 21.5 million TEUs. (Stats from Costamare, Inc.)

Photo by Ian Taylor on Unsplash

In Q2 2020, owners ordered 98 container ships, representing additional capacity of 1M TEU. The covid-19 impacts (labor, social distancing,etc.) led to a 40% reduction in U.S. warehouse labor supply, slowing warehouses ability to process (turn) containers.

0 comments on "The cost of leaky petroleum storage tanks"

One of the most common sources of groundwater contamination is leaking underground storage tanks (UST) like those used by convenience stores and gas stations. From the AEA blog:

About 60 percent of all underground storage tanks (USTs) have experienced at least one leak and that remediation of the approximately 528,000 total leaks costs over $1 billion a year in state and federal funds.

Chris Fleisher, The American Economic Association, January 25, 2021 – “Danger Lurks Below”
Photo by Jason Corey on Unsplash

The EPA runs the UST Program with a lot of detailed information about the problem, and how operators should prevent leaks and remediate them.