A countdown is quite an impact and I am thinking of having a banner at my website. I found two:

climateclock.world/clocks
climateclock.net/

Another option is an interactive plot showing how the 1.5 degree threshold would have reached in 2040s if we acted earlier, but now it is ~2030.

climate.copernicus.eu/how-clos

cds.climate.copernicus.eu/cdsa

SciComm 

In addition to harnessing the power of social media to spread news of our work, we can better communicate to the general public what we have done and why it matters...

A significance statement is not supposed to be a plain-language repeat of the abstract. The statements must answer without jargon:

1) The purpose of the work
2) Key findings, and why do they matter?
3) What follow-up science is suggested (optional)?

doi.org/10.1175/JPO-D-20-0203.

Astro 

An intermediate sized black-hole.

BHs of mass 10^2–10^5  M⊙, more massive than stellar mass BHs and lighter than supermassive BHs (SMBHs), are traditionally designated IMBHs. A conclusive observation of these objects has thus far remained elusive, despite indirect evidence.

GW190521: A Binary Black Hole Merger with a Total Mass of 150  M⊙ (solar mass).
doi.org/10.1103/PhysRevLett.12

P.S.: The paper has two software citations, inc. 😄

Social Media Ethics for the Meteorologist, Mulvey et al.
Bull. Amer. Meteor. Soc. (2020)
doi.org/10.1175/BAMS-D-19-0226

... avoid the three “A’s”—admonish, advise, or apologize—because these characteristics will only invite additional and perhaps harsher responses. If you are wrong, admit it, but do not apologize for expressing your well-thought-out post. Responses, if deemed necessary, should be well thought-out but rapid, brief, informative, friendly, and firm.

FediScience.org

Fediscience is the social network for scientists.