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Visualizing the Rhine River’s Shrinking Water Levels

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Visualizing the Rhine River Water Levels Over the Last 20 Years

Water levels on the Rhine river in Germany continue to sink amid severe drought, forcing companies to seek alternatives for the freight they send up and down Europe’s second-largest river.

This graphic uses data from the German Federal Waterways and Shipping Administration (WSV) compiled by Olivier Lejeune to show 20 years of water levels at one notorious shallow point at Kaub, between Mainz and Koblenz.

How Important is the Rhine?

Around 195 million tons of cargo are shipped on German rivers each year—mostly on the Rhine.

Flowing from the Swiss Alps to the North Sea, the Rhine links German and Swiss industries with the Dutch city of Rotterdam, Europe’s biggest port. Its role in the continent’s economy traces back to the Roman Empire and early medieval trade.

The Rhine river is an important shipping route for many products like coal, gasoline, heating oil, chemicals, car parts, food, and thousands of other goods. However, when water levels drop, cargo vessels need to sail with a reduced load, so they don’t run aground.

Rhine Water Levels at Kaub

Date💧 Lowest water level (cm)
9/20/2002153
9/28/200335
12/17/200494
12/3/200558
2/15/200658
11/7/200789
10/16/2008115
10/5/2009 55
11/6/2010122
11/30/201148
8/21/2012 118
9/7/2013113
6/25/2014111
11/14/201554
12/31/2016122
1/9/201751
10/22/2018 25
9/23/201999
9/23/202078
11/1/202172
8/15/202232

In 2018, the Rhine waterway was shut for goods transport for a total of 132 days due to severe drought.

Due to an unusually hot and dry summer in Europe, the low water levels are emerging earlier than usual, with the lowest water levels typically recorded in September or October. Water levels at the chokepoint of Kaub, near Frankfurt, fell to 32 cm in depth on Monday, August 15, 2022.

The European Space Agency captured part of the Rhine River near Cologne – showing the stark difference between August 2021 and August 2022.

rhine river divided ok

The Copernicus Sentinel-2 mission captured part of the Rhine River near Cologne—showing the stark difference between August 2021 and August 2022.

The low water levels are adding to Europe’s energy crisis, sparked by the Russian invasion of Ukraine. Barge rates to ship fuel from Rotterdam to Basel, Switzerland, are near an all-time high. The closure of the Rhine could disrupt 400,000 barrels a day of oil-product trade.

The Impact of Climate Change

Effects of climate change are modifying the discharge pattern of the Rhine and its tributaries, according to the International Commission for the Protection of the Rhine.

Periods with floods or low flow are expected to become more frequent and more distinct. Floods may be higher and last longer. In addition to navigation issues, the low flow may affect water supply and the quality of groundwater.

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Real Assets

Visualizing Gold Consumption vs. Domestic Supply

India’s consumption is 50 times higher than its domestic supply.

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This graphic compares gold demand (in tonnes) versus domestic gold production in ten selected countries.

Visualizing Gold Consumption vs. Domestic Supply

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

While India and China dominate the demand for gold, both countries face different scenarios when comparing supply gaps.

With its huge jewelry industry, India’s consumption is 50 times higher than its domestic supply. Meanwhile, China produces more than one-third of the gold it demands.

This graphic compares gold demand (in tonnes) versus domestic gold production in 10 selected countries. The data comes from the World Gold Council and was compiled by The Gold Bullion Company as of 2023.

India’s Massive Gold Market

Gold holds a central role in India’s culture, considered a store of value, a symbol of wealth and status, and a fundamental part of many rituals. The metal is especially auspicious in Hindu and Jain cultures.

With a population of over a billion, India tops our ranking with substantial gold demand, primarily for jewelry and gold bars.

CountryGold Production in Tonnes (2023)Gold Consumer Demand Deficit or Surplus
🇮🇳 India15748-733
🇨🇳 China378910-532
🇹🇷 Turkey37202-165
🇺🇸 United States167249-82
🇧🇷 Brazil861769
🇮🇩 Indonesia1334588
🇲🇽 Mexico12715112
🇨🇦 Canada19224168
🇷🇺 Russia32271251
🇦🇺 Australia29424270

China ranks second, with demand driven primarily by gold’s role as a store of value, especially by the People’s Bank of China. Central banks seek gold as a hedge against inflation and currency devaluation. Since 2022, the People’s Bank of China has increased its gold reserves by 316 tonnes.

In third place for gold demand, the U.S. consumed 249 tonnes in 2023, against a domestic supply of 167 tonnes.

Turkey ranks fourth, with mine production in 2023 at 37 tonnes, which is five times lower than its demand of 202 tonnes.

Learn More on the Voronoi App 

To learn more about gold, check out this graphic that shows the value of gold bars in various sizes (as of Aug. 21, 2024).

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Visualized: China’s Steel Demand Through Time

China’s steel demand remains robust, but the breakdown on a sectoral level has shifted since 2010. Which sectors are driving steel consumption?

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streamgraph showing the change in demand by sector for crude steel in China since 2010.

Visualized: China’s Steel Demand Through Time

As the world’s manufacturing powerhouse, China has the highest global demand for crude steel, with the market experiencing remarkable growth since 2010.

In 2023, China’s crude steel demand reached 911 million metric tons. This is up an estimated 50% from 609 million metric tons 13 years earlier. When adding in exports and changes to inventory, China surpassed 1 billion metric tons of steel production for the fifth year in a row.

However, the growth in demand for the metal has not been even across industries. In this graphic, we’ve partnered with BHP to visualize how demand for steel on a sectoral level has shifted between 2010 and 2023.

The Sectors Driving Steel Demand

We observed demand for crude steel across the following sectors:

  • Machinery: machinery used in power, construction, metals and mining, agriculture, tools and parts, etc.
  • Infrastructure: roads, railways, subways, pipelines, etc.
  • Construction: urban and rural housing, office buildings, industrial buildings, WRAC buildings (wholesale, retail, accommodation, catering), etc.
  • Transport: light-duty vehicles, trucks and buses, auto parts, shipbuilding, etc.
  • Consumer Durable Goods: refrigerators, washing machines, air conditioners, microwaves, etc.
  • Metal Goods: containers and hardware, etc.
  • Other: smaller categories, statistical change, etc.

In 2010, the largest share of Chinese demand came from the construction sector. Construction accounted for an estimated 42% of the country’s total steel needs. Machinery (20%) and infrastructure (13%) were the industries with the second- and third-highest demand, respectively.

Over the past 13 years, however, demand has shifted towards the machinery and infrastructure industries.

Sector2010 (%)2023 (%)
Machinery2030
Infrastructure1317
Construction4224
Transport129
Durable Goods78
Other612

The demand for steel from the construction industry is estimated to have dropped from 42% of total demand to 24%, as construction firms purchased 37 million metric tons less steel in 2023 compared to 2010. This slump can, in part, be attributed to the Chinese real estate crisis and developer bankruptcies. Both of these factors led to a slowdown in residential building starts.

The machinery sector, on the other hand, has witnessed incredible growth. It rose from an estimated 20% share of overall Chinese steel demand in 2010 to 30% by 2023, boosted by an influx of equipment renewals. Infrastructure saw approximate growth of 13% to 17% over this timeframe.

Steel Demand for Transportation and Durable Goods

The share of steel used by the transport sector is estimated to have falled from 12% in 2010 to 9% in 2023. However, there was an uptick in the amount of steel used by the industry. It rose from around 73 million metric tons in 2010 to 82 million metric tons 13 years later. And, with more than half of all new electric vehicles (EVs) sold worldwide made in China, the sector could receive support if EVs continue to gain in popularity.

In fact, the green economy needs the steel industry—it remains vital for the production of emerging technologies. As such, it is important that nations take steps towards “cleaning” their steel industries. China is doing so with its focus on carbon capture, utilization, and storage technologies, employing green hydrogen metallurgy, and introducing electric furnaces.

Steel demand for durable goods rose slightly from 2010 to 2023. However, the relatively steady share masks the near-doubling of absolute steel purchased by this sector—up from 43 million metric tons to an estimated 73 million metric tons.

The Path Forward for Steel

The Chinese steel industry remains robust—growing by an estimated 50% from 2010 to 2023—despite significant shifts beneath the surface.

As the energy transition progresses, further changes in industry demand for steel are likely, especially with the increasing prominence of clean technologies, such as EVs. Conversely, demand from the construction industry remains closely tied to the outlook of the country’s housing sector.

BHP is one of the world’s leading iron ore producers. Read more insights in its economic and commodity outlook report.

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