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Soaking up the Sun: Visualizing the Changing Patterns of Daylight in One Year

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The darkest days are upon the residents of the Northern Hemisphere as daylight dwindles and the night lingers longer. Meanwhile, those in the Southern Hemisphere bask in their warmest and longest days—and those at the Equator continue to observe consistent days and nights.

These changing lengths of days and nights depend on where you are on Earth and the time of year. The tilt of the Earth’s axis and its path around the sun affect the number of daylight hours.

Today’s post highlights two simple and elegant animations that help demonstrate how different latitudes experience the sun’s light over the course of one year. The first comes from Reddit user harplass, while the second comes from data scientist Neil Kaye.

Longer and Shorter Days

The Ancient Greeks envisioned the movement of the sun as a Titan named Helios who rode across the sky in a horse-drawn chariot, illuminating the known world below. A rosy-fingered dawn would herald his imminent arrival, while the arrival of the dusk god Astraeus, ever on Helios’ heels, marked the passage of day into night.

Today, time is not at the whims of Greek mythology but by the measurable and consistent movement of celestial bodies. A day on Earth is 24 hours long, but not every day has 12 hours of daylight and 12 hours of night. The actual time of one Earth rotation is a little shorter–about 23 hours and 56 minutes.

Daytime is shorter in winter than in summer, for each hemisphere. This is because the Earth’s imaginary axis isn’t straight up and down, it is tilted 23.5 degrees. The Earth’s movement around this axis causes the change between day and night.

During summer in the Northern Hemisphere, daylight hours increase the farther north you go. The Arctic gets very little darkness at night. The seasonal changes in daylight hours are small near the Equator and more extreme close to the poles.

Length of a Rotation: Equinoxes and Solstices

There are four events that mark the passing stages of the sun, equinoxes and solstices.

The two solstices happen June 20 or 21 and December 21 or 22. These are the days when the sun’s path in the sky is the farthest north or south from the Equator. A hemisphere’s winter solstice is the shortest day of the year and the summer solstice the year’s longest.

Equinoxes and Solstices

In the Northern Hemisphere the June solstice marks the start of summer: this is when the North Pole is tilted closest to the sun, and the sun’s rays are directly overhead at the Tropic of Cancer.

The December solstice marks the start of winter when the South Pole is tilted closest to the sun, and the sun’s rays are directly overhead the Tropic of Capricorn.

The equinoxes happen around March 21 and September 23. These are the days when the sun is exactly above the Equator, which makes day and night of equal length.

Stand in the Place Where You Are

It is always darkest before the dawn, and every passing of solstice marks a time of change. As the Northern Hemisphere heads into the winter holiday season, it also marks the advent of longer days and the inevitable spring and summer.

The lengths of days and nights are constantly changing, but every one will get their time in the sun, at some point.

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Energy

Mapped: The World’s Largest State-Owned Oil Companies

State-owned oil companies control roughly three-quarters of global oil supply. See how these companies compare in this infographic.

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Mapped: The World’s Largest State-Owned Oil Companies

View the high-resolution of the infographic by clicking here.

Oil is one of the world’s most important natural resources, playing a critical role in everything from transportation fuels to cosmetics.

For this reason, many governments choose to nationalize their supply of oil. This gives them a greater degree of control over their oil reserves as well as access to additional revenue streams. In practice, nationalization often involves the creation of a national oil company to oversee the country’s energy operations.

What are the world’s largest and most influential state-owned oil companies?

Editor’s Note: This post and infographic are intended to provide a broad summary of the state-owned oil industry. Due to variations in reporting and available information, the companies named do not represent a comprehensive index.

State-Owned Oil Companies by Revenue

National oil companies are a major force in the global energy sector, controlling approximately three-quarters of the Earth’s oil reserves.

As a result, many have found their place on the Fortune Global 500 list, a ranking of the world’s 500 largest companies by revenue.

CountryNameFortune Global 500 Rank2019 Revenues 
🇨🇳 ChinaSinopec Group2$443B
🇨🇳 ChinaChina National Petroleum Corporation (CNPC) 4$379B
🇸🇦 Saudi ArabiaSaudi Aramco6$330B
🇷🇺 RussiaRosneft76$96B
🇧🇷 BrazilPetrobras120$77B
🇮🇳 IndiaIndian Oil Corporation (IOCL) 151$69B
🇲🇾 MalaysiaPetronas186$58B
🇮🇷 IranNational Iranian Oil Company (NIOC) Not listed$19B* 
🇻🇪 Venezuela Petróleos de Venezuela (PDVSA)Not listed$23B (2018)

*Value of Iranian petroleum exports in 2019. Source: Fortune, Statista, OPEC

China is home to the two largest companies from this list, Sinopec Group and China National Petroleum Corporation (CNPC). Both are involved in upstream and downstream oil operations, where upstream refers to exploration and extraction, and downstream refers to refining and distribution.

It’s worth noting that many of these companies are listed on public stock markets—Sinopec, for example, trades on exchanges located in Shanghai, Hong Kong, New York, and London. Going public can be an effective strategy for these companies as it allows them to raise capital for new projects, while also ensuring their governments maintain control. In the case of Sinopec, 68% of shares are held by the Chinese government.

Saudi Aramco was the latest national oil company to follow this strategy, putting up 1.5% of its business in a 2019 initial public offering (IPO). At roughly $8.53 per share, Aramco’s IPO raised $25.6 billion, making it one of the world’s largest IPOs in history.

Geopolitical Tensions

Because state-owned oil companies are directly tied to their governments, they can sometimes get caught in the crosshairs of geopolitical conflicts.

The disputed presidency of Nicolás Maduro, for example, has resulted in the U.S. imposing sanctions against Venezuela’s government, central bank, and national oil company, Petróleos de Venezuela (PDVSA). The pressure of these sanctions is proving to be particularly damaging, with PDVSA’s daily production in decline since 2016.

State-Owned Oil Companies - Venezuela example

In a country for which oil comprises 95% of exports, Venezuela’s economic outlook is becoming increasingly dire. The final straw was drawn in August 2020 when the country’s last remaining oil rig suspended its operations.

Other national oil companies at the receiving end of American sanctions include Russia’s Rosneft and Iran’s National Iranian Oil Company (NIOC). Rosneft was sanctioned by the U.S. in 2020 for facilitating Venezuelan oil exports, while NIOC was targeted for providing financial support to Iran’s Islamic Revolutionary Guard Corps, an entity designated as a foreign terrorist organization.

Climate Pressures

Like the rest of the fossil fuel industry, state-owned oil companies are highly exposed to the effects of climate change. This suggests that as time passes, many governments will need to find a balance between economic growth and environmental protection.

Brazil has already found itself in this dilemma as the country’s president, Jair Bolsonaro, has drawn criticism for his dismissive stance on climate change. In June 2020, a group of European investment firms representing $2 trillion in assets threatened to divest from Brazil if it did not do more to protect the Amazon rainforest.

These types of ultimatums may be an effective solution for driving climate action forward. In December 2020, Brazil’s national oil company, Petrobras, pledged a 25% reduction in carbon emissions by 2030. When asked about commitments further into the future, however, the company’s CEO appeared to be less enthusiastic.

That’s like a fad, to make promises for 2050. It’s like a magical year. On this side of the Atlantic we have a different view of climate change.

— Roberto Castello Branco, CEO, Petrobras

With its 2030 pledge, Petrobras joins a growing collection of state-owned oil companies that have made public climate commitments. Another example is Malaysia’s Petronas, which in November 2020, announced its intention to achieve net-zero carbon emissions by 2050. Petronas is wholly owned by the Malaysian government and is the country’s only entry on the Fortune Global 500.

Challenges Lie Ahead

Between geopolitical conflicts, environmental concerns, and price fluctuations, state-owned oil companies are likely to face a much tougher environment in the decades to come.

For Petronas, achieving its 2050 climate commitments will require significant investment in cleaner forms of energy. The company has been involved in numerous solar energy projects across Asia and has stated its interests in hydrogen fuels.

Elsewhere, China’s national oil companies are dealing with a more near-term threat. In compliance with an executive order issued by the Trump Administration in November 2020, the New York Stock Exchange (NYSE) announced it would delist three of China’s state-run telecom companies. Analysts believe oil companies such as Sinopec could be delisted next, due to their ties with the Chinese military.

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Energy

The Periodic Table of Commodity Returns (2021 Edition)

Which commodity had the best returns in 2020? From gold to oil, we show how commodity price performance stacks up over the last decade.

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The Periodic Table of Commodity Returns (2011-2020)

Being a commodity investor can feel like riding a roller coaster.

Take silver. Typically known for sharp, idiosyncratic price movements, it faced double-digit declines in the first half of the decade, falling over 35% in just 2013 alone. By contrast, it jumped over 47% in 2020. Similarly, oil, corn, and others witnessed either steep declines or rapid gains.

The above graphic from U.S. Global Investors traces 10 years of commodity price performance, highlighting 14 different commodities and their annual ranking over the years.

Commodity Price Performance, From Best to Worst

Which commodities were the top performers in 2020?

The aforementioned silver tripled its returns year-over-year, climbing 47.9% in 2020. In July, the metal actually experienced its strongest month since 1979.

RankCommodity
Return (2020)
Return (2019)
Return (2018)
1Silver47.9%15.2%-8.5%
2Copper26.0%3.4%-17.5%
3Palladium25.9%54.2%18.6%
4Gold25.1%18.3%-1.6%
5Corn24.8%3.4%6.9%
6Zinc19.7%-9.5%-24.5%
7Nickel18.7%31.6%-16.5%
8Gas16.0%-25.5%-0.4%
9Wheat14.6%11.0%17.9%
10Platinum10.9%21.5%-14.5%
11Aluminum10.8%-4.4%-17.4%
12Lead3.3%-4.7%-19.2%
13Coal-1.3%-18.0%-22.2%
14Oil-20.5%34.5%-24.8%

Along with silver, at least seven other commodities had stronger returns than the S&P 500 in 2020, which closed off the year with 16.3% gains. This included copper (26.0%), palladium (25.9%), gold (25.1%) and corn (24.8%).

Interestingly, copper prices moved in an unconventional pattern compared to gold in 2020. Often, investors rush to gold in uncertain economic climates, while sectors such as construction and manufacturing—which both rely heavily on copper—tend to decline. Instead, both copper and gold saw their prices rise in conjunction.

Nowadays, copper is also a vital material in electric vehicles (EVs), with recent demand for EVs also influencing the price of copper.

Silver Linings

As investors flocked to safety, silver’s price reached heights not seen since 2010.

The massive scale of monetary and fiscal stimulus led to inflationary fears, also boosting the price of silver. How does this compare to its returns over the last decade?

silver returns 2011-2020

In 2013, silver crashed over 35% as confidence grew in global markets. By contrast, in 2016, the Brexit referendum stirred uncertainty in global markets. Investors allocated money in silver, and prices shifted upwards.

As Gold as the Hills

Like silver, market uncertainty has historically boosted the price of gold.

What else contributed to gold’s rise?

  • U.S. debt continues to climb, pushing down confidence in the U.S. dollar
  • A weaker U.S. dollar makes gold cheaper for other countries to buy
  • Low interest rates kept the returns of other safe haven assets low, making gold more attractive by comparison

Here’s how the price of gold has changed in recent years.

gold returns 2011-2020

Gold faced its steepest recent declines in 2013, when the Federal Reserve bank discussed tapering down its quantitative easing program in light of economic recovery.

Hitting the Brakes On Oil

Oil suffered the worst commodity price performance in 2020, with -20.5% returns.

For the first time in history, oil prices went negative as demand plummeted. To limit its oversupply, oil producers shrunk investment, closed wells, and turned off valves. Unfortunately, many companies still faced bankruptcies. By November, 45 oil producers had proceeded with bankruptcy filings year-to-date.

This stood in stark contrast to 2019, when prices soared 34.5%.

oil returns 2011-2020

As is custom for oil, prices see-sawed over the decade. In 2016 and 2019, it witnessed gains of over 30%. However, like 2020, in 2014 it saw huge losses due to an oversupply of global petroleum.

In 2020, total production cuts hit 7.2 million barrels a day in December, equal to 7% of global demand, in response to COVID-19.

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