PARIS – Progress slashing unhealthy ozone in the western United States has largely been undone by pollution wafting across the Pacific from China, according to a study published Monday.

The number of people across Japan taken to hospitals by ambulance due to heatstroke or heat exhaustion stood at 11,672 in the week to Sunday, the most in a single week since officials started compi

RIO DE JANEIRO – The International Olympic Committee said Sunday it will begin testing for disease causing viruses in the sewage-polluted waters where athletes will compete in next year’s Rio de Ja

LONDON – Researchers in the United States trying to develop a vaccine against the deadly Middle East respiratory syndrome (MERS) virus say they have had early signs of success in animal experiments

GENEVA – The World Health Organization on Wednesday hailed the fewest weekly infections for over a year in the west African Ebola epidemic, but warned they were braced for a significant new outbrea

The government has approved an increase in compensation payments for the Fukushima nuclear crisis to ¥7.07 trillion as tens of thousands of evacuees remain in temporary housing more than four years

The Land, Infrastructure, Transport and Tourism Ministry will set up a system designating certain roads as recommended cycling routes to help spur development of the bicycle tourism industry.

MEXICO CITY – Two million more Mexicans fell into poverty between 2012 and 2014, government data showed on Thursday, highlighting the challenges President Enrique Pena Nieto faces in meeting pledge

The Environment Ministry on Saturday started work to transport radiation-tainted soil and other waste from an elementary school in Fukushima Prefecture, home to Tokyo Electric Power Co.’s Fukushima

At least three elderly people died and more than 800 people, including four schoolchildren, were taken to the hospital Tuesday, apparently suffering from heat stroke or heat exhaustion, as the Japa