Connect with us

Green

This Stunning Graphic Shows Earth’s Temperature Over 22,000 Years

Published

on

Climate change is a touchy subject, and it’s something that we only approach with the utmost deliberation and care.

However, as simple or as light-hearted as it appears at first glance, today’s infographic actually provides an invaluable amount of context on a subject that is often mired in the ugly details of mathematical models, multipliers, and policy implications.

Earth’s Temperature Over 22,000 Years

Today’s infographic from XKCD shows the Earth’s temperature since the last ice age glaciation, which was 22,000 years ago. It was around this time that there were vast ice sheets covering North America, northern Europe, and Asia.

Earth's Temperature Over 22,000 Years

This infographic does two things very well.

First, it gives us an idea of temperature changes over time in a relatable fashion, but it also gives us a sense of time scale.

Temperature Changes in Context

Temperatures were cold at the end of the last glaciation, which was around 20,000 BCE – about 4°C cooler than they were during the modern era. Boston and New York would have been covered in thick ice at that time.

Fast-forward half of the span of the infographic, and temperatures have increased to near modern levels (the average between 1961-1990) in about 11,000 years. This would have been around 9,000 BCE, which is around the time the very first humans started farming way back in today’s Middle East region.

From there, temperatures continue to increase for another 4,000 years, peaking around the time that the wheel was invented. This was around 5,000 BCE, which is still considered to be the end of the Stone Age. This is an era still well before the Ancient Egyptians rose to prominence.

The Earth cools again. By the time of the birth of Jesus, temperatures are close again to to those in the modern era. It continues to cool until Shakespearian times, which were in the middle of what is called the “Little Ice Age”.

Finally, after the Industrial Revolution, temperatures spike at a rate not seen before. In the short span of just a century or so, temperatures are back at their previous peak that occurred when the wheel was invented – roughly 7,000 years ago.

Sources used: Shakun et al (2012), Marcott et al (2013), Annan and Hargreaves (2013), HadCRUT4, IPCC,

Click for Comments

Energy

Ranked: Electric Vehicle Sales by Model in 2023

Today, electric vehicle sales make up 18% of global vehicle sales. Here are the leading models by sales as of August 2023.

Published

on

The Highest Electric Vehicle Sales, by Model

Ranked: Electric Vehicle Sales by Model in 2023

Electric vehicle (EV) sales are gaining momentum, reaching 18% of global vehicle sales in 2023.

As new competitors bring more affordable options and new performance features, the market continues to mature as customers increasingly look to electric options.

This graphic ranks the top-selling EVs worldwide as of August 2023, based on data from CleanTechnica.

The Best Selling EVs in 2023 (Through August)

Below, we show the world’s best selling fully electric vehicles from January to August 2023:

ModelCountryVehicles Sold
(Jan-Aug 2023)
Tesla Model Y🇺🇸 U.S.772,364
Tesla Model 3🇺🇸 U.S.364,403
BYD Atto 3 / Yuan Plus🇨🇳 China265,688
BYD Dolphin🇨🇳 China222,825
GAC Aion S🇨🇳 China160,693
Wuling HongGuang Mini EV🇨🇳 China153,399
GAC Aion Y🇨🇳 China136,619
VW ID.4🇩🇪 Germany120,154
BYD Seagull🇨🇳 China95,202

As we can see, Tesla‘s Model Y still holds a comfortable lead over the competition with 772,364 units sold. That’s more than double the sales of the #2 top selling vehicle, Tesla’s Model 3 (364,403)

But it’s hard to ignore the rising prevalence of Chinese EVs. The next five best selling EV vehicles are Chinese, including three from BYD. The automaker’s Atto 3 (or Yuan Plus, depending on market), is being sold in various countries including Germany, the UK, Japan, and India.

Meanwhile, Chinese automaker GAC Group also had two models of its Aion EV brand make the rankings, with the Aion S selling 160,693 units so far.

Regional market strength is also clear. For Volkswagen’s ID.4 model (120,154 units sold), Europe and China account for the majority of sales.

Given growing cost efficiencies and changing consumer behavior, global EV sales are projected to make up half of new car sales globally by 2035, according to forecasts from Goldman Sachs.

Continue Reading

Subscribe

Popular