Dr. Robert Rohde Profile picture
Apr 24 3 tweets 2 min read Twitter logo Read on Twitter
This is getting ridiculous.

OISST provides a real-time daily index of ocean surface temperature (60 S - 60 N). For the last month it has been continuously reading higher than in any previous year and still shows no sign of settling. Image
Ocean temperature anomaly patterns from OISST.

Above average temperature nearly everywhere. Major heatwave in the Northern Pacific and near South America. The latter is likely a developing El Niño, though not official till it spreads westward.

climatereanalyzer.org/clim/sst_daily/ Image
OISST daily average ocean temperatures presented as anomalies from the 1982-2011 mean. Currently the highest anomaly value on record, and sharply above every other year for this date. Image

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More from @RARohde

Apr 20
How has Twitter changed for climate scientists since Elon Muck bought it?

Fewer active scientists, fewer tweets, fewer likes per tweet, fewer retweets per tweet, and less likely to go viral.

A thread with some data. 🧵
Twitter has long been a fun side activity for many climate scientists, with the hopes of sharing some knowledge with the public and connecting with other scientists.

@KHayhoe has prepared a list of almost 3,200 scientists who work on climate issues:

twitter.com/i/lists/105306…

2/
On Twitter, the most popular scientists working on climate have 100,000+ followers (e.g. @ClimateHuman, @KHayhoe, @MichaelEMann, @KavehMadani, @rahmstorf, @picazomario, @JacquelynGill ).

However, many more have thousands of followers.

3/
Read 17 tweets
Apr 3
Story of police killing a little girl's goat is really sticking with me.

As such, I read the actual lawsuit. If anything, some of the details therein make it even worse.

If there is any justice, their needs to be a large punitive judgment in this case.

Details follow. 🧵
Amended legal complaint: reason.com/wp-content/upl…

Background: With her mother, a 9-year-old girl participating in 4-H bought a baby goat called Cedar.

She raised this goat for 3 months & bonded with it.

The original plan was for the goat to be sold for meat.
The girl entered the goat in a Youth Auction run by the Shasta Fair Association.

However, before the date of the auction, the child and her mother informed the Fair that they had changed their minds and wanted to withdraw.

The Fair refused to allow them to withdraw.
Read 17 tweets
Mar 20
Congratulations to all the scientists and others who have completed the AR6 Synthesis Report: ipcc.ch/report/ar6/syr/

This is the final report of the 6th @IPCC_CH assessment cycle.

A few highlights in following tweets.
@IPCC_CH In the world's worst choose-your-own-adventure, we have already warmed ~1.2 °C (~2.2 °F).

Now our actions will determine whether today's children will see a world warmed by 1.5 °C, 2 °C, 3 °C or more.

Existing policies and practices would carry us to 3.2 °C (5.8 °F) by 2100. Image
@IPCC_CH Rapid global warming is expected to exceed the potential of many plant and animal species to adapt, leading to population declines and extinctions.

This occurs at all warming levels, but is markedly more severe for scenarios with higher levels of warming. Image
Read 12 tweets
Mar 3
Bit of a technical post, but here is a chart showing the sources of uncertainty in one of the modern estimates of global climate change since 1850.

For most of the last 170 years, ocean temperature uncertainties are actually more impactful that land uncertainties.
When we talk about temperature uncertainties, we are talking about the little error bars added to charts like this, based on a scientific assessment of the "known unknowns".

The assessed uncertainties are much smaller than the long-term trend.
Assessments of uncertainty are complicated, and even labelling them is rarely black & white.

One person's "measurement noise" might be assessed by someone else as related to "systematic biases".
Read 15 tweets
Feb 13
Let's talk a little about high altitude balloon flights.

When it comes to small balloons, such flights are surprisingly poorly regulated, and as a result there is often no quick way to distinguish benign balloons from potentially hostile ones.
The Chinese flew an enormous balloon, described as 40-60 m (130-200 ft).

However, many high-altitude balloons are much, much smaller. The one shot down over Alaska was described as about the size of "a small car".
Balloons the size of the one flown over Alaska are not well-regulated, which can make it hard to identify what they are.

In general, small balloons are not required to carry transponders or any other automated means of identification.
Read 16 tweets
Oct 19, 2022
Later this month, "The Climate Book" edited by @GretaThunberg will arrive on bookshelves.

I don't usually talk about individual products, but this is one that I think a lot of you will enjoy.

How do I know? I was one of the experts asked to help check it for accuracy.

A 🧵
First, a quick caveat.

What I got to look at was an intermediate draft of the book. I haven't seen the final version, so some things might have changed.

2/
So what is The Climate Book?

It is a very broad anthology covering the whole of climate change science, how it affects us, and how we might respond to it.

3/
Read 12 tweets

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