china

China used about 10,070 TWh of electricity in 2024, roughly a third of the world's total, followed by the United States and India. This ranking uses Ember data for 2024, adds per-person figures, and explains what drives the gaps.

China leads the world in hydropower with 435.95 GW of installed capacity — more than three times that of second-place Brazil at 110 GW. Hydropower is the world's largest source of renewable electricity, accounting for roughly 40 percent of global renewable generation. This ranking covers the top 15 countries by hydropower installed capacity using IHA and IRENA 2024 data, with methodology, historical context, and caveats about what capacity figures do and do not tell you.

China has the world's largest military by active personnel — approximately 2,035,000 active-duty service members as of 2024, according to IISS Military Balance estimates. India ranks second at roughly 1,476,000, the United States third at approximately 1,316,000. North Korea and Russia complete the top five. But personnel count is only one dimension of military capability: the United States spends more on defense than the next ten countries combined, and technology, doctrine, and logistics matter as much as headcount. This ranking covers the top 20 countries by active military personnel using IISS Military Balance 2024 and SIPRI data, with methodology, spending comparison, and caveats.

China has 3,492 buildings standing at 150 metres or taller — more than three times the United States total of 905 — making it the undisputed skyscraper capital of the world. The top ten countries account for roughly 90 percent of the world's tall building stock. This ranking uses Council on Tall Buildings and Urban Habitat (CTBUH) data, cross-referenced with the Skyscraper Center database, and covers the top 15 countries with methodology, historical context, and analysis of what drives vertical construction.

China installed 278 GW of new solar capacity in 2024 alone — more than the entire installed base of the United States. With 888 GW of total solar PV capacity, China now hosts nearly half of all solar power on Earth. This article ranks the top solar nations by installed capacity and explains how the global solar revolution became so geographically concentrated.

China dominates global EV adoption: of the nearly 58 million electric cars on the world's roads at the end of 2024, China accounts for more than half. Chinese buyers purchased over 11 million new EVs in 2024 alone — more than were sold globally just two years earlier. Norway leads in EV penetration, with 29% of all cars on its roads now electric. This ranking covers the top countries by total EV stock, new sales, and market share, sourced from the IEA Global EV Outlook 2025.

The United States operates 94 nuclear reactors producing nearly 97 GW of electricity — more nuclear capacity than any other nation on Earth. But France is the world's most nuclear-dependent country: 70–75% of French electricity comes from its 57 reactors, the highest share of any major economy. This article ranks nuclear nations by capacity, reactor count, and electricity share.

China has 1.09 billion internet users — the largest national online population on Earth. India is close behind at 920 million, with the fastest growth. The US (315M), Indonesia (220M), and Brazil (190M) round out the top 5. By 2026, 5.5 billion people — 67% of humanity — are online. Here's the full ranking and what it means.

Nauru has the world's highest smoking rate — 52% of adults smoke. China has more smokers than any country: 300 million people. Smoking kills 8 million people per year — more than any other preventable cause. Yet tobacco use is rising in low-income countries as it falls in wealthy ones.

December 2020: China's Chang'e 5 mission landed on the Moon, collected 1.731 kg of samples, and returned them to Earth—the first automated sample return in 44 years.

China's Yutu-2 rover explored the Moon's far side, discovering subsurface layers and geological features revealing the Moon's complex evolution.

Global real estate was worth about $393.3 trillion at the start of 2025, and China and the United States hold nearly half of it. Annual investment is far smaller, near $840 billion. Here is how the rankings work, where the money goes, and what the data cannot tell you.