{"page":"\n\n
\n
\n
\n
\n
\n\nVideo\n
\n

\nHuman Influence on Global Droughts Goes Back 100 Years\n

\n
\n
\nGet Free Access for 10 Days!\n
\n
\n
\n
\n
\n
×
\n\n\n
\n\nPublisher:\n\nNASA\n\n\n
\n
\nHuman-generated greenhouse gases and atmospheric particles were affecting global drought risk as far back as the early 20th century, according to a study from NASA's Goddard Institute for Space Studies (GISS) in New York City. The study,...\nHuman-generated greenhouse gases and atmospheric particles were affecting global drought risk as far back as the early 20th century, according to a study from NASA's Goddard Institute for Space Studies (GISS) in New York City.

The study, published in the journal Nature, compared predicted and real-world soil moisture data to look for human influences on global drought patterns in the 20th century. Climate models predict that a human \"fingerprint\" - a global pattern of regional drying and wetting characteristic of the climate response to greenhouse gases - should be visible early in the 1900's and increase over time as emissions increased. Using observational data such as precipitation and historical data reconstructed from tree rings, the researchers found that the real-world data began to align with the fingerprint within the first half of the 20th century.

The team said the study is the first to provide historical evidence connecting human-generated emissions and drought at near-global scales, lending credibility to forward-looking models that predict such a connection. According to the new research, the fingerprint is likely to grow stronger over the next few decades, potentially leading to severe human consequences.

Music: In Light of Things by Matthew Charles Gilbert Davidson Complete transcript available.

Credits: NASA's Goddard Space Flight Center








\n
\n
\n\n
\n
\n
\n
\n

Resource Details

\n
\n
\n
\n
Curator Rating
\n
\n
\n
\n
\n
\n
Educator Rating
Not yet Rated
\n
\n
\n
\n
\n
Media Length
\n
1:23
\n
\n
\n
\n
\n
Grade
3rd - 11th
\n
\n
\n
\n
\n
Subjects
All Subjects
\n
\n
\n
\n
\n
Media Type
Instructional Videos
\n
\n
\n
\n
\n
Source:
\n
\nNASA Goddard\n\n
\n
\n
\n
\n
\n
Date
\n
2019
\n
\n
\n
\n
\n\n
Language
English
\n
\n
\n
\n
\n
Audiences
For Teacher Use
2 more...
\n
\n
\n
\n
\n
Usage Permissions
Fine Print: Educational Use
\n
\n
\n
\n
\n
\n

Additional Materials

\n
\n\nSign in or Join Now
\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" href=\"/subscription/new\">Video Preview\n
\n
\n
\n

Concepts

\n
\n
climate, tree rings, greenhouse gases
\n
\n\n\n
\n
\n
\n
\n

Additional Tags

\n
\n
drought, soil science, soil m oisture/water content, palmer drought severity index, earth, lk ward
\n
\n\n\n
\n
\n
\n
\n

Classroom Considerations

\n
Video is ad-free
\n
\n
\n

Educator Ratings

\n
\n
\n
\n
\n
\n\nShow resource details\n
\n
\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Human Influence on Global Droughts Goes Back 100 Years\" href=\"/subscription/new\">\"Human\n\n
\n
\n
\n
\n\n\n"}