NASA Global Climate Change News April 2021
 
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April 2021

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Blog: The Challenges of Managing Earth's Long-term Surface Temperature Records

To ensure a consistent, accurate record of Earth's long-term temperature variations, scientists need to make "apples to apples" comparisons. Learn why initial data are adjusted before they're used in temperature analyses. › Full story

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Direct Observations Confirm That Humans Are Throwing Earth's Energy Budget off Balance

A NASA study has confirmed with direct evidence that human activities are changing Earth's energy budget, trapping much more energy from the Sun than is escaping back into space. › Full story

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NASA Joins White House National Climate Task Force

As a leading agency observing and understanding environmental changes on Earth, NASA has joined the Biden administration's National Climate Task Force. › Full story


More Top Stories

Update: Carbon Dioxide Concentration
February's global average concentration of atmospheric carbon dioxide was about 416 parts per million, a 48% rise since pre-industrial levels (1850) and a 125% increase since the Last Glacial Maximum (20,000 years ago).

Major Earth Satellite to Track Disasters, Effects of Climate Change
Designed to spot potential natural hazards and help researchers measure how melting land ice will affect sea level rise, the NISAR spacecraft marks a big step as it takes shape.

NASA Data Power New USDA Soil Moisture Portal
This tool provides information that will help people track droughts or floods, make plans for when to plant crops, and forecast agricultural yields.

NASA Scientists Complete First Global Survey of Freshwater Fluctuation
To investigate humans’ impact on freshwater resources, scientists have conducted the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones previously too small to measure from space.

Video: 2020 Hurricane Season
Last year's Atlantic hurricane season smashed records with an unprecedented 30 named storms, marking the fifth year in a row with above-average hurricane activity. This visualization (available to download) shows the events as seen by NASA’s spaceborne Integrated Multi-satellitE Retrievals for GPM (IMERG).

Video: Movement of Carbon Dioxide Between the Air and Sea
As Earth warms, it's important to know how carbon flows around the planet. This visualization (available to download) shows carbon dioxide (CO2) moving between the air and sea with the help of ocean surface winds.

Video: Ocean Flows Under Pine Island Glacier, Antarctica
As with Greenland, warming ocean waters contribute to Antarctic glacier ice loss. This visualization (available to download) shows ocean currents circulating in Pine Island Bay (West Antarctica) and flowing under Pine Island Glacier, eroding the ice where it meets the sea.

Images of Change: Invasion of the Water Hyacinths Across Valsequillo Reservoir, Mexico
An invasive floating plant spread across central Mexico's Valsequillo reservoir between January 2000 and January 2020. Learn what scientists think caused the problem.

Images of Change: Greenland's Spalte Glacier Disintegrates
A 44-square-mile (114-square-kilometer) branch of a huge ice shelf in northeastern Greenland broke off from its parent and fractured into numerous icebergs in July 2020. Find out what scientists think the future holds for this glacier.

Images of Change: Catastrophic Flooding in Sudan
In September 2020, two main tributaries of the Nile River breached their banks in what was reported as Sudan's worst flooding of the last three decades. How many people were critically affected? Visit this page to find out.


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