A five-day pollution red alert was declared in Beijing and 21 other Chinese cities.
An international research team published their discovery of 1,500 new viruses that were in invertebrates in Australia and China.
New Delhi air pollution was declared a public emergency, causing the city to close many schools and construction sites.
The Paris Climate Change Agreement went into force.
Authorities blamed climate change for an Anthrax outbreak in the Arctic Circle of Russia.
The Paris Agreement was opened for signatures.
A category five blizzard occurred in the Mid-Atlantic and North East US, which covered the area in 3 feet of snow.
The mayor of Flint, Michigan, declared a state of emergency over contaminated water.
Schools shut down in Singapore due to air pollution from farming practices in Indonesia.
Nature magazine announced that more than 3 million people die yearly from air pollution.
President Barack Obama announced his Clean Power Plan to take action on climate change.
Pope Francis blamed Global warming on 'human selfishness.'
One hundred volunteers in Bhutan set a new Guinness World Record when they planted 49,672 trees in one hour.
A ban on diesel cars was called for in France.
US Secretary of State John Kerry spoke to college students in Jakarta, Indonesia, about the looming threat of Climate Change.
The widest tornado ever recorded hits El Reno, Oklahoma.
A category 3 blizzard wreaked havoc in the US and Canada.
185 people are killed during an earthquake in Christchurch, New Zealand.
A massive earthquake strikes Chile.
Giant self-rolling snowballs were found in the UK.
139,000 people lost their lives when Cyclone Nargis made landfall in Myanmar.
Martinique earthquake shook the majority of the Eastern Caribbean.
Tropical Storm Zeta formed in the open Atlantic Ocean.
The Kyoto Protocol goes into effect.
Highest barometric pressure ever recorded in recent history for locations 750 m above sea level.
A massive earthquake hits Gujarat, India.
Canada's second-largest city, Montreal, started dumping untreated waste in the Saint Lawrence River.
An F5 tornado hit Oklahoma City, where the highest global wind speeds were recorded.
Lowest temperature ever recorded in the United Kingdom.
The Great Hanshin earthquake hits Kobe, Japan.
The MV Braer runs aground on the coast of the Shetland Islands.
World Oceans Day was celebrated for the first time.
North Carolina, US, was hit by hurricane Bob.
Chlorofluorocarbons (CFCs) are banned to protect the ozone layer.
An extreme category 5 hurricane called Gilbert hit Jamaica, with the eye of the storm being 15 miles wide.
The heaviest hailstones ever recorded hit Bangladesh.
The Soviet Vostok Station in Antarctica recorded the world's lowest temperature in an inhabited location.
An incredibly cold air swept into the US from Canada and plunged temperatures across most States far below their existing all-time lows.
Mount St. Helens erupts.
The world's strongest storm ever was recorded.
The Sahara Desert temperature dropped so low that some areas became covered in snow.
The world's first solar power plant is opened.
Miami, Florida, received snow for the first and last time ever.
A week-long blizzard struck Iran and killed 4,000 people, making it the deadliest in history.
A 100 feet (30 meter) high wave destroys a Peruvian mining camp and kills hundreds of people.
Prospect Creek Camp in Alaska recorded -80°F, making it the coldest temperature recorded in US history.
The United States Environmental Protection Agency was formed in the US under Director William Ruckelshaus.
John Lennon and Yoko Ono planted acorns for world peace after also mailing acorns to many world leaders to do the same.
A 9.2 magnitude earthquake occurred in Alaska.
A massive landslide kills 4,000 in Peru.
