Friday, May 21, 2021
Friday, May 7, 2021
|Compost Week 2021|
This question is appropriate because this is International Composting Week, May 2-8, 2021, with a theme: Grow, Eat…COMPOST…Repeat.
Some foods don’t make it out of the fields. Potatoes, corn, and tomatoes that are too small, or too ugly, may be left behind in the fields. In some cased, the farmers announce that the edible, but ugly, food is available for gleaning – all you have to do is drive over and gather it.
Thursday, April 22, 2021
Earth Day 2021 Quiz (April 22, 2021)
Answers will be forthcoming today or tomorrow.
1. Plastics. Approximately what % of the US’s plastic gets recycled?
2. Plastics. Approximately what % of the US’s plastic makes its way into lakes, rivers, oceans?
3. Plastic in the environment (on land or in ocean). About how many years does it take to decompose a plastic bottle in the ocean?
a. Plastic decomposes in about 20 years.
b. Plastic decomposes in about 50 years.
c. Plastic decomposes in about 150 years.
d. Plastic doesn’t really decompose, but let’s go with 450 years.
4. Plastic in the oceans. Approximately how many years before the plastic in the oceans will exceed the fish? (by weight).
a. Too last, plastic already exceeds fish in oceans (by weight).
b. 2030. In 10 years, plastic should exceed fish (by weight).
c. 2050. In 30 years, plastic should exceed fish (by weight).
d. 2100. In 80 years, plastic should exceed fish (by weight).
5. Manatees in Florida are dying at an unusually high rate recently. What is the primary cause of deaths in 2021?
6. The artic is melting enough that ships can now travel through the Arctic to the North during the summer and avoid the Panama Canal or longer routes? Approximately how long during the summer can ships now navigate through the Arctic?
a) About 4 weeks of thaw sufficient to navigate in the summer.
b) About 8 weeks of thaw sufficient to navigate in the summer.
c) About 3 months of thaw sufficient to navigate in the summer.
d) About 365 days a year.
7. About, what percentage of the US lakes, rivers and streams are polluted (according to US EPA)? (Polluted, as in no swimming and you should not eat the fish, if there are any.)
8. Soil. The current “industrial” farming methods deplete the topsoil. No topsoil, little or no farm crops. At the current rate of topsoil depletion, how many years do we have before we “run out” of topsoil? [Ooops.... Things changed... problems with this question... Well, with the answers...]
a. About 20 years until the world’s topsoil will be effectively depleted.
b. About 30 years until the world’s topsoil will be effectively depleted.
c. About 60 years until the world’s topsoil will be effectively depleted.
d. About 100 years until the world’s topsoil will be effectively depleted.
9. Extinction. Out of about 8 million plant and animal species on earth, approximately how many are in threat of extinction?
a. 100K, 1.2%
b. 300K, 3.7%
c. 500K, 6.2%
d. 1M, 12.5%
10. Earths. Current estimates are that we significantly overuse the earth’s resources (overshoot the earth’s carrying capacity). We currently need part of another earth to be “sustainable”. But, if the rest of the world consumed at the same rate per person as we do in the US, how many earths do we need?
a. 2 earths (+1)
b. 3 earths (+2)
c. 4 earths (+3)
d. 5 earths (+4)
11. What is the depth of the oceans? (Plus, water expands when warmed about 0.000214 per +1C for seawater, so how much would sea levels rise based on a +1 degree Centigrade increase in global temperature that transferred throughout the oceans.)
a. Average ocean depth is 1,000ft (+1C temp increase = +2.6in increase in avg ocean level.)
b. Average ocean depth is 2,500ft (+1C temp increase = +6.4in increase in avg ocean level.)
c. Average ocean depth is 1.2 mile (+1C temp increase = +16.3in in increase avg ocean level.)
d. Average ocean depth is 2.3 miles (+1C temp increase = +31.2in increase in avg ocean level.)
Tuesday, March 23, 2021
World Water Day (March 22, 2021) is past (www.WorldWaterDay.org)... By now you should have taken the Water Day Quiz at SustainZine. It’s been about 10 years since I developed such a quiz. I had to work to improve and update the original quiz… It is still tricky to get good answers to some of these water-critical issues. Often the water usage is available to the homeowner, but gets confusing as the data is aggregated for the state and for the nation. The more abstract uses of water, like virtual water, are erratic and imprecise. Important concepts, but the answers are fuzzy.
Monday, March 22, 2021
World Water Day 2021 (March 22) Quiz Name/Team: ____________
a. 10-15%b. 20-30%c. 40-50%d. 55-65%
Tuesday, February 2, 2021
Later in 2010 Hall (2010) published an article on Lessons of recessions: Sustainability education and jobs may be the answer. (SustainZine Blog post here.) This article discusses the Great Recession of 2007-2008. Make no doubt about the pandemic of 2020, it too was a recession so destructive innovation has been (and will continue to be) the result.
Tuesday, January 19, 2021
Solar ITC Rate Per Year.
This means that the calculator we developed for residential and for business solar investments will still be accurate for the next two years. (See our Solar Profit Calculator page.)
Woo Hoo! Happy Days!:-)
During that time Biden administration should start to remove the fossil fuel subsidies, meaning that renewables should continue to take share from coal, oil and gas. There's two other things that Biden will likely do: extend renewable incentives; and, institute a cost structure for carbon. Only the renewed incentives was likely before the US Senate went 50+1 for the Democrats. Something like a gas tax increase or a cap-and-trade program was highly unlikely just a month ago.