HONG KONG — The visit by Chinese Premier Wen Jiabao to Delhi in December underlined the importance and immense diversity between the world's two once-and-future superpowers.

Neighbors China and India, home to 35 percent of the planet's population, are the great hope for future global growth while potentially posing great peril that could plunder and destroy the Earth's fragile resources.

Wen arrived with great fanfare, as if trying to prove that anything that the United States, France or Britain could do, China could do better and bigger. All four countries have paid court to India in recent weeks looking for business deals. President Barack Obama took 215 business leaders; Nicolas Sarkozy led more than 60; and David Cameron was accompanied by 40 British business executives. Premier Wen took 400 executives, including bosses from Shanghai Electric, SinoSteel and telecoms firms ZTE and Huawei.