India will become the world’s most populous country in 2025, surpassing China, where the population will peak one year later because of declining fertility, according to United States Census Bureau projections released Tuesday. The bureau suggests that the projected peak in China, 1.4 billion people, will be lower than previously estimated and that it will occur sooner. With the fertility rate declining to fewer than 1.6 births per woman in this...

Spewing summit The Copenhagen summit will generate more carbon emissions than any previous climate conference, equivalent to the annual output by 2,300 Americans or 660,000 Ethiopians. Delegates, journalists, activists and observers from almost 200 countries have gathered at the December 7-18 summit and their travel and work will create 46,200 tonnes of CO2, most of it from their flights to Copenhagen. This would fill nearly 10,000 Olympic swimming pools. The calculation includes...

Governments and people have to make choices about accepting new scientific developments into their daily lives. Many attribute high levels of objectivity and integrity to scientists, which is not true of many of them. Scientists have been known to manipulate results to their advantage. Scientific issues are often complex, there are differing views among scientists and the layman finds it difficult to decide which scientific course is harmful or beneficial....

Paul A. Samuelson, the first American Nobel laureate in economics and the foremost academic economist of the 20th century, died Sunday at his home in Belmont, Mass. He was 94. His death was announced by the Massachusetts Institute of Technology, which Samuelson helped build into one of the world’s great centres of graduate education in economics. In receiving the Nobel Prize in 1970, Samuelson was credited with transforming his discipline from...

Seeking to set at rest reports of differences with two key negotiators of the Indian team over the country offering unilateral concessions without obtaining any reciprocity and attempts to water down the Prime Minister’s per capita approach, Minister of State for Environment and Forests Jairam Ramesh said on Sunday that he held “discussions with them, and they continued to be [a] valued part of the negotiating team to guide us...