A major factor is that Venezuela's oil is mostly heavier crude, which is denser and more viscous. This makes it costlier and more difficult to extract and refine, and usually sells for a lower price than lighter crude.
There's also rampant mismanagement, poor infrastructure, and sanctions affecting the output and outcomes. See also: "resource curse"
"Solarpunk is a literary genre and art movement that envisions how the future might look if humanity succeeded in solving major contemporary challenges with an emphasis on sustainability, human impact on the environment, climate change, and pollution."
That ambiguity irked me, too. The full text[1] mentions collecting serum samples from participants "after at least 8 h of fasting," and that the study was conducted from early May to early June at Baylor in Houston, which would make for a ~14 hour fast each day.
There's also rampant mismanagement, poor infrastructure, and sanctions affecting the output and outcomes. See also: "resource curse"