Stein van Oosteren was cycling along the Avenue Denfert Rochereau in Paris when, to his surprise, he found himself in a "caravan" of bikes.

Known for ecological advances and a relatively light carbon footprint among industrialised nations, Sweden wants to be the first that is carbon neutral by 2045.

One fifth of beef and soybean exports from Brazil to the European Union is produced on land that was illegally deforested, according to a report published in Science magazine.

A heatwave in Siberia that saw temperature records tumble as the region sweltered in 38-degree Celsius highs was "almost impossible" without the influence of manmade climate change, leading scientists said.

White House hopeful Joe Biden on Tuesday unveiled an ambitious, $2 trillion climate change plan that would revamp the U.S. energy sector and seek to achieve carbon pollution-free power in just 15 years.

Soldiers erected sandbag flood barriers in a city near China's largest freshwater lake after the heaviest rainfall in nearly six decades drenched the swollen Yangtze River basin.

Floods across central and eastern China have left more than 140 people dead or missing and are swelling major rivers and lakes to record-high levels, with authorities warning that the worst was yet to come.

An abandoned oil tanker lying off Yemen's coast with 1.1 million barrels of crude on board is deteriorating badly and could rupture at any time, with disastrous results for Red Sea marine life, U.N. and other experts warn.

Wildfires raging in Siberia in record summer temperatures have decreased considerably over the past week, Russia's forest service said Saturday, as it battles blazes by cloud seeding and explosives.

Tropical depression Fay moved north over New York early Saturday and was expected to continue to weaken through the weekend, forecasters said.

The depression had maximum sustained winds of 35 mph (55kph), the National Hurricane Center in Miami said in its 2 a.m. advisory. It was located about 50 miles (80 kilometers) north of New York City.