How do active volcanoes change clouds?

NASA Goddard Space Flight Center scientist Andrew Sayer talks about how emissions from volcanoes can affect clouds. This video provides an overview of research published in the Journal of Atmospheric Chemistry and Physics. Research: Systematic satellite observations of

November 14, 2014

Rare fallstreak hole cloud observed over Melbourne, Australia

A rare fallstreak hole cloud was observed today over Melbourne, Australia, Meteo Europe team reports. Because of their rarity and unusual appearance, as well as very little exposure in media, fallstreak holes are often mistaken for or attributed to unidentified flying o

November 03, 2014

2014 ozone hole update

According to scientists from NASA and NOAA, the Antarctic ozone hole reached its annual peak on September 11 with the size of 24.1 million square kilometers (93 million square miles). Overall, the 2014 ozone hole is smaller than the large holes of the 1998–2006 pe

October 31, 2014

New approach to estimate 15 years of CO2 emissions from burning fossil fuels

A new system, called the “Fossil Fuel Data Assimilation System,” (FFDAS) has been used to quantify 15 years of CO2 emissions, every hour, for the entire planet – down to the city scale.An international research team led by ASU scientists has developed

September 19, 2014

World Ozone Day 2014

September 16, 2014 - The World Ozone Day, is meant to commemorate the success that has been achieved in ameliorating ozone depletion since the enactment of the Montreal Protocol, but also to bring attention to the work ahead. In their first review in four years on

September 16, 2014

Increased SO2 emissions from Holuhraun eruption site can pose health risk and affect global climate change

Earth has split open between the Bardarbunga and Askja volcanoes in Iceland and spewed lava and hot gas. According to the University of Iceland, as of September 9, 2014, the new lava flow was 16 kilometers (10 miles) long and covered about 20 square kilometers (8

September 12, 2014

Unexpectedly large amount of ozone-depleting compound present in Earth's atmosphere

New NASA research shows that Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound - Carbon tetrachloride (CCl4) -  from an unknown source decades after the compound was banned worldwide.Carbon tetrachloride was regulated

August 22, 2014

NRL reveals new meteorological insight into mid-level clouds

Research meteorologists at the U.S. Naval Research Laboratory (NRL) Marine Meteorology Division (MMD) and Scripps Institution of Oceanography, employing the Navy's Mid-Course Doppler Radar (MCR) at Cape Canaveral, were able to characterize mid-level, mixed-phase alt

July 22, 2014

Another outbreak of noctilucent clouds over Europe

The weekend of July 12 - 13 brought another outbreak of noctilucent clouds (NLCs) to Europe, SpaceWeather reports. Across the northern reaches of the continent, skies were criss-crossed by signature ripples of electric blue, like these photographed by Jaan Jalgrata

July 14, 2014

Saharan dust on the move across Atlantic Ocean

Disturbances such as large thunderstorm complexes or simply strong trade winds over North Africa periodically result in vast dust and sand storms, some of which extend as high as 6 000 meters. These can be driven out to sea within the Saharan Air Layer

July 05, 2014

Noctilucent clouds outburst reported

Sky watchers in Europe are reporting an outburst of bright noctilucent clouds (NLCs). The display began at sunset on July 3rd, filling northern horizons with electric-blue ripples, swirls, and tendrils of light.Morten Ross sent this picture to from

July 04, 2014

Noctilucent clouds sighted in Germany

For the second time in just a few days, noctilucent clouds (also known as NLCs) have been sighted in Germany, SpaceWeather reports. Although their northern season is just getting underway, researchers aren't sure why these early NLCs seem to favo

June 03, 2014

Massive thunderstorm backed by dry dusty winds hit Indian capital

At least nine people were killed in and around New Delhi, India, when a massive thunderstorm brought down trees and cut off power on May 30, 2014. Most of the deaths were caused by the falling trees or collapsing walls.A massive thunderstorm backed by dry 

May 30, 2014

Massive sandstorm hit northern China

Massive sandstorm in northwest China is transporting large sand deposits from Taklimakan Desert in western China and the Gobi desert in the east, through Gansu Province and the Xinjiang Uygur autonomous region. A very large front is moving eastward

April 25, 2014

Unexpected teleconnections in noctilucent clouds

NASA's AIM spacecraft is discovering unexpected "teleconnections" in Earth's atmosphere that link weather and climate across vast distances.Teleconnection in atmospheric science refers to climate anomalies being related to each other at large d

April 11, 2014

Newly detected ozone depleting substances in the atmosphere

Four gases contributing to the destruction of the ozone layer were identified in the atmosphere. All four of them have been released into the atmosphere recently. Scientists at the University of East Anglia made the discovery by

March 14, 2014

Dangerous air pollution hit Iceland's capital

Reykjavík and other parts of Iceland recorded 40 times the upper safe limit of pollution levels on February 19/20, 2014. The pollution levels haven't been so high since the last volcanic eruptions in 2010-2011. However, this time it is not ash that

February 21, 2014

Noctilucent clouds season has begun in southern hemisphere

The season of noctilucent, "night-shining", clouds has begun in the southern hemisphere and NASA's AIM spacecraft is monitoring a vast bank of rippling electric-blue NLCs blanketing almost all of Antarctica. Noctilucent clouds

December 12, 2013

Arthur Few explains lightning activity at Chaiten volcano, Chile

In May 2008 the Chilean volcano Chaiten erupted spectacularly and exhibited remarkable lightning activity. Photographer Carlos Gutierrez captured a few images showing unusual kelly-green lightning channels. In this briefing, lightning researcher Arthur Few explains the

December 12, 2013

Air pollution in northeastern China reached hazardous levels

A cold front has sent temperatures plummeting in most northeastern Chinese provinces, causing fog and haze to linger across the region. Agricultural fires in the region in the fall,  following the harvest, also influenced levels of smog. Since

October 24, 2013

Antarctic ozone hole reaches maximum size for 2013

Each year for the past few decades during the Southern Hemisphere spring, chemical reactions involving chlorine and bromine cause ozone in the southern polar region to be destroyed rapidly and severely. This depleted region is known as the “ozone

October 21, 2013

Outdoor air pollution a leading cause of cancer

The International Agency for Research on Cancer (IARC), WHO's agency specialized for cancer, announced on October 16, 2013 that it has classified outdoor air pollution as carcinogenic to humans (Group 1). The world’s leading experts

October 18, 2013

Air pollution levels in Europe raise concern - 88% of city dwellers exposed to levels that breach UN standars

In its annual report on European air quality (Air quality in Europe - 2013 report) released on October 16, 2013, The European Environment Agency (EAA) raised concern over Particulate matter (PM), which is microscopic specks of dust and soot caused by

October 16, 2013

Saharan dust cloud travels across Atlantic

NOAA's satellites have detected a plume of dust moving off the coast of Africa. The Saharan Air Layer has a relatively constrained area of high concentration. This animation bellow, released by NOAA Environmental Visualization Laboratory, uses a recently enhanced

July 31, 2013

Natural gas condensate leaking in Gulf of Mexico as operators lose control over the well

According to the report by US Coast Guard operators of natural gas and crude oil production platform in Gulf of Mexico, USA, lost control over one of the wells on July 9, 2013. Rainbow sheen is visible on the water surface and is estimated to be more than 6.5

July 10, 2013

Global warming debunked: NASA report verifies carbon dioxide actually cools atmosphere

Practically everything you have been told by the mainstream scientific community and the media about the alleged detriments of greenhouse gases, and particularly carbon dioxide, appears to be false, according to new data compiled by NASA's Langley Research Center.

July 07, 2013

Canada and US wildfire smoke crosses the Atlantic Ocean

Smoke lofted above the part of the atmosphere closest to the ground (the boundary layer), where topography has a significant impact on winds, is spreading farther than smoke that remains trapped near the surface.  Intense fires in Canada produced

July 04, 2013

Smoke plumes from North American wildfires over Spain

Massive wildfires in US and Canada produced smoke plumes that drifted over the Atlantic Ocean and reached Europe in late June 2013. MODIS satellite imagery shows smoke plumes hovering over Spain and the western Mediterranean Sea on June 26-27,

June 27, 2013

Air pollution in Singapore reached record hazardous levels

The thick smog from large illegal slash-and-burn land clearance practices​ in Sumatra has been carried by prevailing winds blowing from the southwest, and has been affecting Singapore, Malaysia and surrounding areas since June 13, 2013, pushing

June 22, 2013

Malaysian cities shrouded by smoke haze from Indonesia

Haze from forest fires on the Indonesian island of Sumatra shrouded Malaysia on June 16, 2013, causing "unhealthy" levels of pollution in six areas. The Air Pollutant Index (API) showed unhealthy levels of between 101 and 129 in several areas. In

June 17, 2013

Dust over and around the Arabian Peninsula

Dust blows in the air over and around the Arabian Peninsula, covering the southern half of the Red Sea and part of the Persian Gulf, near Qatar, where a thicker dust plume blows northwest-southeast. The veil of dust also extends southward over the Gulf of Aden and

June 14, 2013

Unusually good season of Noctilucent Clouds ahead

Every summer, above the North pole, icy crystals begin to cling to the smoky remains of the meteors, forming hypnotic electric-blue clouds known as noctilucent clouds (NLC`s). These clouds are especially of interest to high latitude skywatchers, and around the Arctic

June 10, 2013

Dust by Senegal River and Cap-Vert Peninsula, West Africa

Dust from the Sahara Desert blows westward off the coast of West Africa. The dust is thickest around the border between Mauritania and Senegal, with plumes visible just north of the Senegal River and the Cap-Vert peninsula, extending west from the main sandy areas of

May 26, 2013

MinuteEarth: Our atmosphere is escaping!

Our planet is surrounded by a wispy layer of gas that keeps us warm, allows the weather to happen and basically makes all of life on Earth possibile.Except that precious atmosphere of ours is leaking into outer space every second. Thankfully it is a rather slow

May 20, 2013

Dust across the Mediterranean Sea

A cloudbank stretched across the Mediterranean Sea from northern Algeria to southern France for the last few days. Saharan dust streaked the clouds, extending hundreds of kilometers from southeast to northwest. One especially noticeable dust plume passed over the

April 29, 2013