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Aquarium Air Stone Ultra Silent Aquarium Bubble Stone Air Pump A

$5

Aquarium Air Stone Ultra Silent Aquarium Bubble Stone Air Pump A

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Product description

Size:Diameter 8cm

Thank you very much for choosing to continue to learn about our products, and hope that the following information can help you.DescriptionThis air disc bubble diffuser is made of ceramic stone. Soak the air stone in water for one hour before use. Brush the stone surface every 2 weeks, you will find that it can accompany you for a long time and save a lot of money. The surface is frosted, making it more delicate and smooth, with more hand-feeling, and more uniform venting.FeaturesOxygen stone-Color: Grey.-Material: Ceramic stone.-Diameter: 8 cm/3.15 inch.Please allow 1-30mm error due to manual measurement.Due to the difference between different dispalys, the picture may not reflect the actual color of the item.1 * Oxygen StoneNotes:1. We only sell the main product shown in the picture and the part mentioned in the text, and the rest are not sold.2. If you have any questions, please contact us, we will reply you within 24h!

Aquarium Air Stone Ultra Silent Aquarium Bubble Stone Air Pump A

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NSIDC Home

Scientific Data for Research

 

Snow

 

Glaciers

 

Ice Sheets

 

Sea Ice

 

Ice Shelves

 

Soil Moisture

 

Frozen Ground

Advancing knowledge of Earth's frozen regions

NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere.

Arctic Sea Ice News & Analysis

Scientific analysis of Arctic sea ice conditions plus daily images

ELOKA

Working together to understand the changing Arctic system

Snow Today

Scientific analysis of snow conditions in the Western United States plus daily images

The NASA DAAC at NSIDC

NASA Earth science data on snow, ice, cryosphere, and climate

Visit the Cryosphere

Facts, photos and educational resources about Earth's frozen regions

Greenland Today

Daily surface melt images from NASA data, and scientific analysis

News

14 September 2021

Each September, the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder informs the public of the annual Arctic sea ice minimum extent, an indicator of how climate change is affecting the Arctic, the fastest-warming region of the globe.

Scientists at Northern Arizona University, Arizona State University, the Arizona Geological Survey at the University of Arizona, and the National Snow and Ice Data Center at the University of Colorado Boulder have been awarded almost $2 million from the National Science Foundation (NSF) to develop a virtual reality teaching tool called Polar Explorer.

The National Snow and Ice Data Center (NSIDC) announced this week their participation in the 50x30 Coalition, a group of governments and cryosphere and emissions research institutions endorsing the need to reduce greenhouse gas emissions 50 percent by 2030. The Coalition’s founding members endorse the scientific consensus that failure to reach this milestone will result in temperature “overshoot,” in which emissions remain too high to hold Earth within 1.5 degrees Celsius of pre-industrial levels, leading to major and irreversible damages to the environment. Damage may be especially harmful for highly temperature-sensitive frozen components of the Earth system, with impacts ranging from sea level rise to infrastructure damage to food insecurity.

Arctic sea ice has likely reached its maximum extent for the year, at 14.77 million square kilometers (5.70 million square miles) on March 21, 2021, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder. The 2021 maximum is tied with 2007 for seventh lowest in the 43-year satellite record. 

27 April 2021

With support from NASA, the NSIDC DAAC now offers an interactive tool called IceFlow that harmonizes and standardizes lidar data into a uniform format, allowing scientists to analyze significant changes within the cyrosphere.

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The Latest on Snow and Ice

16 September 2021

The Arctic sea ice minimum extent is imminent. After a cool and stormy summer, this year’s... read more

2 September 2021

Arctic sea ice extent declined more slowly during August 2021 than most years in the past decade... read more

18 August 2021

On August 14, 2021, rain was observed at the highest point on the Greenland Ice Sheet for... read more

18 August 2021

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11 August 2021

The Greenland Ice Sheet had two extensive melt events in the second half of July. The second... read more