New computer model visualizations project significant changes in U.S. precipitation patterns under varying carbon dioxide emissions scenarios. By 2100, the southwestern U.S. could become

New computer model visualizations project significant changes in U.S. precipitation patterns under varying carbon dioxide emissions scenarios. By 2100, the southwestern U.S. could become considerably drier, while the northeastern U.S. may experience increased wetness.

These visualizations offer a powerful depiction of climate change impacts, illustrating the potential transformation of our nation's climate. As Allison Leidner, Ph.D., a NASA scientist, notes, they communicate these impacts in a way words cannot. For further details, explore the National Climate Assessment: globalchange.gov/what-we-do/assessment.

The continental U.S. could face an 8-degree Fahrenheit temperature increase by the end of the 21st century if carbon dioxide concentrations reach 800 parts per million. Current CO2 levels stand at

The continental U.S. could face an 8-degree Fahrenheit temperature increase by the end of the 21st century if carbon dioxide concentrations reach 800 parts per million. Current CO2 levels stand at 400 ppm and are rising faster than at any time in Earth's history.

These projections, from the draft National Climate Assessment, are vividly illustrated through computer model visualizations. Allison Leidner, a NASA scientist, emphasizes that these visualizations effectively communicate the dramatic potential changes to the nation's climate, including future temperature and precipitation scenarios.

A creative pop-up store concept emerged in Australia, designed to challenge consumer perceptions. Its primary goal was to encourage reflection on the purchase of natural resources, such as bottled

A creative pop-up store concept emerged in Australia, designed to challenge consumer perceptions. Its primary goal was to encourage reflection on the purchase of natural resources, such as bottled water.

Information regarding this initiative was published on October 22, 2013.

Cone's online survey, involving 1,000 respondents per country, defined "corporate responsibility" as companies altering business practices and supporting social and environmental issues. The

Cone's online survey, involving 1,000 respondents per country, defined "corporate responsibility" as companies altering business practices and supporting social and environmental issues. The report shares opinions on business's role in society, emphasizing its capacity to drive change.

Key findings highlight focusing on material issues, leveraging core business competencies, recognizing the impact of socially minded consumers, and advocating for transparent communication. Download the 2012 Cone Green Gap Trend Tracker for more details.

JPL scientist Josh Willis, from NASA's Ask A Climate Scientist campaign, asserts that global warming is not pausing, despite some decades showing slower surface temperature

JPL scientist Josh Willis, from NASA's Ask A Climate Scientist campaign, asserts that global warming is not pausing, despite some decades showing slower surface temperature increases.

Willis points to increased ocean heat trapping and continuously rising sea levels as clear evidence. See [global temperature trends](http://climate.nasa.gov/key_indicators#globalTemp) and [sea level records](http://climate.nasa.gov/key_indicators#seaLevel).

While natural fluctuations occur, human-caused climate change is undeniably progressing. Explore more NASA climate science answers [here](http://bit.ly/1b7rSdL).

Climate change is a present reality, demanding urgent action from world leaders.

The Climate Reality Project, collaborating with WPP and UN Secretary-General Ban Ki-moon, launched the

Climate change is a present reality, demanding urgent action from world leaders.

The Climate Reality Project, collaborating with WPP and UN Secretary-General Ban Ki-moon, launched the #WhyWhyNot campaign. This initiative features young people asking "Why? Why Not?" to pressure leaders for meaningful carbon emission reduction commitments.

The campaign urges everyone to pose these fundamental questions to their networks and elected representatives, challenging inaction and vested interests until real change occurs.

Have burning questions about Earth's changing climate? Wonder how scientists differentiate human impact from natural causes? Now's your chance to ask a NASA climate scientist

Have burning questions about Earth's changing climate? Wonder how scientists differentiate human impact from natural causes? Now's your chance to ask a NASA climate scientist directly.

Submit your question by recording a 10-15 second video and uploading it to YouTube, or simply post it on Twitter. Ensure you tag your submission with #askclimate so we can find it.

NASA scientists will record video responses to selected questions, which will be posted on the NASAExplorer YouTube channel.