Carbon Credits & Offsets

Energy Use by US States

Back in in 2015, NPR published a nice small-multipes slope chart showing how each state in the USA generated 'their' energy: Coal, Gas, Nuclear, Hydro? How Your State Generates Power. This approach is simple and effective.

More recently, the WSJ did the same thing, but instead used line charts arranged as a 'map' of the USA (embedded below): America’s Power Grid Is Increasingly Unreliable (behind paywall).

Mapping where the earth will become uninhabitable

Mapping where the earth will become uninhabitable is a cool 3D Data Viz / 'Scrolly' Map - scroll all the way down & you can select the interactive mode.

Cool? Yes! Fancy? Yes! Effective? No! This is a classic case of visual and technical fireworks that distract from the data and the message.

Need Contours?

Try Axis Map: https://contours.axismaps.com/#13/42.6111/-72.5949 (here centered around Greenfield, MA). A few comments:

• You need to set an appropriate contour interval for your overall topography.
• I can 'see' the label or roads - not sure what's happening here.
• Export as vector, image, or GeoJSON - great!

Current Wind & Weather

Fun web map by Esri: https://www.arcgis.com/apps/mapviewer/index.html?layers=cb1886ff0a9d4156ba4d2fadd7e8a139

What precision do you need?

Great simple table showing the distance represented by decimal degrees - obviously this works anywhere for latitude, but is only correct for longitude at the equator because the line of longitude conerge towards the poles.

Source: https://community.esri.com/t5/education-blog/a-set-of-activities-for-teaching-core-content-from/ba-p/1139408 (Page 30)

Dihydrogen Monoxide FAQ

The Dihydrogen Monoxide FAQ is not new, but still relevant!

SAR Satellites

Everything you ever wanted to know about SAR satellite data and the ecosystem but were afraid to ask is worth a read if you are into that kind of stuff, especially the commercial side of SAR satellites.

Here's something I did not know: the current 'best' available optical satellite image data comes from the European Space Agencies Sentinel-2A and Sentinel-2B satellites and I always wondered what happend to 1A and 1B? Turns out, Sentinel-1A and Sentinel-1B are C-band SAR satellites.