Global temperature records continue to tumble with March coming in as the hottest in data going back to 1891, according to the Japan Meteorological Agency
Philip Wen, John Garnaut Chinese police have quietly travelled to Australia as part of Chinese President Xi Jinping's expanding "Operation Fox Hunt" campaign.
The Herald's picture editors showcase the best images from around the globe.
Peter Hannam Sea temperatures around Australia are posting "amazing" records that climate specialists say signal global records set in 2014 may be broken this year and next.
Jason Koutsoukis When Julie Bishop steps off the plane in Tehran on Sunday, she will become the first Australian Government Minister to set foot in Iran for nearly 12 years.
Jason Koutsoukis, New Delhi Foreign Minister Julie Bishop has stressed that Australian couples wanting children born through surrogacy abroad to carefully consider the legal circumstances both in the country where the child will be born and also in their home state in Australia.
Peter Hannam Australia's chances of a hotter and drier than usual year have increased with the likelihood of an El Nino event forming in the Pacific Ocean this year now an odds-on risk, the Bureau of Meteorology said.
Eryk Bagshaw An Italian doctor maintains he has the right technique to produce a functioning body for Valery Spiridionov, a 29-year-old from Vladimir, Russia.
It's the high-school question that has stumped swathes of numerically literate people.
Internet forums are fertile ground for budding mathemeticians to offer up solutions.