Mapped: Solar and Wind Power by Country
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Mapped: Solar and Wind Power by Country
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Wind and solar generate over a tenth of the world’s electricity. Taken together, they are the fourth-largest source of electricity, behind coal, gas, and hydro.
This infographic based on data from Ember shows the rise of electricity from these two clean sources over the last decade.
Europe Leads in Wind and Solar
Wind and solar generated 10.3% of global electricity for the first time in 2021, rising from 9.3% in 2020, and doubling their share compared to 2015 when the Paris Climate Agreement was signed.
In fact, 50 countries (26%) generated over a tenth of their electricity from wind and solar in 2021, with seven countries hitting this landmark for the first time: China, Japan, Mongolia, Vietnam, Argentina, Hungary, and El Salvador.
Denmark and Uruguay achieved 52% and 47% respectively, leading the way in technology for high renewable grid integration.
|Rank||Top Countries||Solar/Wind Power Share|
|#10||🇬🇧 United Kingdom||25.2%|
From a regional perspective, Europe leads with nine of the top 10 countries. On the flipside, the Middle East and Africa have the fewest countries reaching the 10% threshold.
Further Renewables Growth Needed to meet Global Climate Goals
The electricity sector was the highest greenhouse gas emitting sector in 2020.
According to the International Energy Agency (IEA), the sector needs to hit net zero globally by 2040 to achieve the Paris Agreement’s goals of limiting global heating to 1.5 degrees. And to hit that goal, wind and solar power need to grow at nearly a 20% clip each year to 2030.
Despite the record rise in renewables, solar and wind electricity generation growth currently doesn’t meet the required marks to reach the Paris Agreement’s goals.
In fact, when the world faced an unprecedented surge in electricity demand in 2021, only 29% of the global rise in electricity demand was met with solar and wind.
Even as emissions from the electricity sector are at an all-time high, there are signs that the global electricity transition is underway.
Governments like the U.S., Germany, UK, and Canada are planning to increase their share of clean electricity within the next decade and a half. Investments are also coming from the private sector, with companies like Amazon and Apple extending their positions on renewable energy to become some of the biggest buyers overall.
More wind and solar are being added to grids than ever, with renewables expected to provide the majority of clean electricity needed to phase out fossil fuels.
Mapped: What Did the World Look Like in the Last Ice Age?
A map of the Earth 20,000 years ago, at the peak of the last ice age, when colder temperatures transformed the planet we know so well.
What Did the World Look Like in the Last Ice Age?
What did the world look like during the last ice age? Was it all endless glaciers and frozen ice? The answer is a partial yes—with some interesting caveats.
The Last Glacial Maximum (LGM), colloquially called the last ice age, was a period in Earth’s history that occurred roughly 26,000 to 19,000 years ago.
This map by cartographer Perrin Remonté offers a snapshot of the Earth from that time, using data of past sea levels and glaciers from research published in 2009, 2014, and 2021, alongside modern-day topographical data.
Let’s dive into the differences between the two Earths below.
The Last Ice Age: Low Seas, Exposed Landmasses
During an ice age, sea levels fall as ocean water that evaporates is stored on land on a large scale (ice sheets, ice caps, glaciers) instead of returning to the ocean.
|Earth's Ice Cover||20,000 Years Ago||Today|
At the time of the LGM, the climate was cold and dry with temperatures that were 6 °C (11 °F) lower on average. Water levels in the ocean were more than 400 feet below what they are now, exposing large areas of the continental shelf.
In the map above, these areas are represented as the gray, dry land most noticeable in a few big patches in Southeast Asia and between Russia and Alaska. Here are a few examples of regions of dry land from 20,000 years ago that are now under water:
- A “lost continent” called Sundaland, a southeastern extension of Asia which forms the island regions of Indonesia today. Some scholars see a connection with this location and the mythical site of Atlantis, though there are many other theories.
- The Bering land bridge, now a strait, connecting Asia and North America. It is central to the theory explaining how ancient humans crossed between the two continents.
- Another land bridge connected the island of Great Britain with the rest of continental Europe. The island of Ireland is in turn connected to Great Britain by a giant ice sheet.
- In Japan, the low water level made the Sea of Japan a lake, and a land bridge connected the region to the Asian mainland. The Yellow Sea—famous as a modern-day fishing location—was completely dry.
The cold temperatures also caused the polar parts of continents to be covered by massive ice sheets, with glaciers forming in mountainous areas.
Flora and Fauna in the Last Ice Age
The dry climate during the last ice age brought about the expansion of deserts and the disappearance of rivers, but some areas saw increased precipitation from falling temperatures.
Most of Canada and Northern Europe was covered with large ice sheets. The U.S. was a mix of ice sheets, alpine deserts, snow forests, semi-arid scrubland and temperate grasslands. Areas that are deserts today—like the Mojave—were filled with lakes. The Great Salt Lake in Utah is a remnant from this time.
Africa had a mix of grasslands in its southern half and deserts in the north—the Sahara Desert existed then as well—and Asia was a mix of tropical deserts in the west, alpine deserts in China, and grasslands in the Indian subcontinent.
Several large animals like the woolly mammoth, the mastodon, the giant beaver, and the saber-toothed tiger roamed the world in extremely harsh conditions, but sadly all are extinct today.
However, not all megafauna from the LGM disappeared forever; many species are still alive, including the Bactrian camel, the tapir, the musk ox, and the white rhinoceros—though the latter is now an endangered species.
Will There Be Another Ice Age?
In a technical sense, we’re still in an “ice age” called the Quaternary Glaciation, which began about 2.6 million years ago. That’s because a permanent ice sheet has existed for the entire time, the Antarctic, which makes geologists call this entire period an ice age.
We are currently in a relatively warmer part of that ice age, described as an interglacial period, which began 11,700 years ago. This geological epoch is known as the Holocene.
Over billions of years, the Earth has experienced numerous glacial and interglacial periods and has had five major ice ages:
|Major Ice Ages||Name||Time Period (Years Ago)|
|1||Huronian Glaciation||2.4 billion - 2.1 billion|
|2||Cryogenian Glaciation||720 million - 635 million|
|3||Andean-Saharan Glaciation||450 million - 420 million|
|4||Late Paleozoic ice age||335 million - 260 million|
|5||Quaternary Glaciation||2.6 million - present|
It is predicted that temperatures will fall again in a few thousand years, leading to expansion of ice sheets. However there are a dizzying array of factors that are still not understood well enough to say comprehensively what causes (or ends) ice ages.
A popular explanation says the degree of the Earth’s axial tilt, its wobble, and its orbital shape, are the main factors heralding the start and end of this phenomenon.
The variations in all three lead to a change in how much prolonged sunlight parts of the world receive, which in turn can cause the creation or melting of ice sheets. But these take thousands of years to coincide and cause a significant change in climate.
Furthermore, current industrial activities have warmed the climate considerably and may in fact delay the next ice age by 50,000-100,000 years.
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