CUNY Academic Commons | Steven Kidder | Activity https://commons.gc.cuny.edu/members/kidder/activity/ Activity feed for Steven Kidder. Sat, 01 Jan 2050 18:00:18 -0500 https://buddypress.org/?v= en 30 hourly 2 dec7298255f55b92a2573f16fc62af9f Steven Kidder replied to the topic Submerged marine festival in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=98634 Mon, 28 Sep 2020 01:08:48 -0400 When I was younger, using plastic water bottles was basically unheard of. There were water fountains all over the place… Now when I go to the park, the fountains are often non-working. Is there a stigma against water fountains? New York City water, in particular, starts out super-clean in the Catskills, and sure there is some possible…[Read more]

]]> f0107dc7f6c330eb5086d60f64ddabe1 Steven Kidder replied to the topic Submerged marine festival ( plastic) in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=98616 Sun, 27 Sep 2020 23:13:31 -0400 Like many of the comments, I also hadn’t given much thought to microplastics or the idea that doing laundry would be an issue… I would be interested to see the detrimental effects better documented though–like if you keep fish in an a tank full of microplastics, what happens compared to normal?

]]> 1669e31228951a9d646b508aba432977 Steven Kidder replied to the topic Submerged marine festival in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=98615 Sun, 27 Sep 2020 23:02:08 -0400 Are you sure that “Single-use plastics are definitely more cost-effective when compared to any other materials that can be used”?  Are you considering the long term costs on ecosystems, environment, and the effects these could have on people?

]]> cda921b9ab5a096e9e73b55b69c78699 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96624 Thu, 17 Sep 2020 16:59:38 -0400 test reply

]]> 8fd186e064fee40cc53342a7173d1134 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96605 Thu, 17 Sep 2020 14:22:49 -0400 Yes, eventually Los Angeles will be off the west coast of Canada…

]]> d8b1d1342974f5986f1142d13df3340c Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96604 Thu, 17 Sep 2020 14:21:37 -0400 Yes, the India-Asia collision will eventually stop. (Today we live in New York at the site of an old collision much like that one). And the placement of the continents keeps shifting, so yes, over time the arrangement will be quite different…

]]> 9eecc82976c047c44683095f619267c5 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96603 Thu, 17 Sep 2020 14:19:40 -0400 The water is usually around a couple weight percent. It’s not a lot, but it makes a big difference!

]]> 815951edadb58fdc053ae077d16bec91 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96599 Thu, 17 Sep 2020 13:49:40 -0400 The continents form by many different processes, so they are more diverse. Usually at least though there is the old granites and gneisses and other “hard” rock. Then often one or more layers of sediment on top. The continents are many times older than the sea floor, so they have a more complicated history and structure.

]]> d3e6df7e5f4f426fa28348724fea03e6 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96597 Thu, 17 Sep 2020 13:46:57 -0400 Pangea is just the most recent one, so we have most information about it.

]]> f7251ceb05f7fbef917714eb840f3967 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96596 Thu, 17 Sep 2020 13:45:57 -0400 Subduction tends to happen when the sea floor is old and dense. The Atlantic sea floor isn’t super old… but also it is difficult to get subduction started. You have to overcome some resistance to get the process going. It’s a big question in geology, how that can happen.

]]> af7881a61393ac2edb096365097eec1e Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96595 Thu, 17 Sep 2020 13:44:05 -0400 Yes, the other Hawai islands do not have active volcanoes. The eruptions just stop happening… and there is actually a new island forming by volcanic eruption off the coast of the big island!

To become “inactive” it just means the eruptions stop. So erosion and weathering take over. The rocks cool down (become more dense), so there is some…[Read more]

]]> eda7305bb47432cdc55464e9e2675ef1 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96594 Thu, 17 Sep 2020 13:40:22 -0400 It’s possible for the different boundaries to be subducted under a continent (like in this case, under North America. But things get warmer in the mantle, so the processes are different, so even if there is still motion apart or together it doesn’t make new sea floor, or volcanoes, etc.

]]> f555badcd0c46846e27047d19a254e0e Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96592 Thu, 17 Sep 2020 13:38:04 -0400 yes.

]]> 4e62569a953e8dc227a911bbb0f4f882 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96590 Thu, 17 Sep 2020 13:37:28 -0400 Please also see Amanda’s earlier post (she found the names and a link to more information about the earlier supercontinent.

]]> 760cc8579adf420ef7d88f3f40fcc949 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96589 Thu, 17 Sep 2020 13:35:49 -0400 Yes there is a “supercontinent cycle”. So they have formed, and then break apart again eventually. As I understand, it has to do with all the heat that builds up under the supercontinent and causes rifting.

]]> b7f81d4e11f78c079c1c03d64bfe442b Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96588 Thu, 17 Sep 2020 13:33:16 -0400 20 meters/year??! whoa. Some things that would happen would be that the sea level would rise tremendously because the ocean crust would be warmer and less dense everywhere. So the continents would be flooded. Also, as you said, there would be a lot more volcanic gasses… my guess, probably still possible for a human to survive, but it would a…[Read more]

]]> 2e50f0709724b38c7d00ea5d994dc37c Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96587 Thu, 17 Sep 2020 13:30:20 -0400 At any trench, it will be one plate going under the other… even if it’s at a triple junction.

]]> 7108fcd875809f73796f9aa74e20f0db Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96339 Wed, 16 Sep 2020 16:57:09 -0400 The EQ happen cluster along plate boundaries. The depth and intensity aren’t really related.

]]> fdf2f4bf95cf875833502f95f816faab Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=96334 Wed, 16 Sep 2020 16:54:38 -0400 It may be kind of like a boiling pot of soup. Sometimes the froth on top is all pushed over to one side (a lot of upwelling in one area)… but in the case of the Earth the froth is an insulator, so it can get hot under the supercontinent area, and this can eventually cause the supercontinent to break up again and spread out.

]]> a6d5f6e3d74dad38b37e369db54b90c8 Steven Kidder replied to the topic Global Impacts Video in the forum EAS 217 F20 https://commons.gc.cuny.edu/?p=95245 Thu, 10 Sep 2020 19:44:07 -0400 Is this is a comment or question? Try to either pose a question, or click “reply” if you are commenting on a topic that someone else posted. Thanks.

]]> 824bdcea1f0bc5c00c67ded183454ed8 Steven Kidder changed their profile picture https://commons.gc.cuny.edu/activity/p/687090/ Thu, 27 Aug 2020 17:28:06 -0400 e4d0f65b38a461b463bf09aa6ef03779 Steven Kidder changed their profile picture https://commons.gc.cuny.edu/activity/p/687089/ Thu, 27 Aug 2020 17:27:08 -0400 a850514fdfe596a1f8eba2d4de900950 Steven Kidder created the group EAS 217 F20 https://commons.gc.cuny.edu/activity/p/687044/ Thu, 27 Aug 2020 16:50:14 -0400 c3cdd45d74088d9e9e919dc79e5b4a0f Steven Kidder became a registered member https://commons.gc.cuny.edu/activity/p/419999/ Tue, 10 Nov 2015 20:01:15 -0500