But humans use about 40 percent of it annually, Running said.
The number would seem to offer plenty of wiggle room for humanity, but in fact, only about 10 percent of the remaining vegetation is up for grabs, he said. It's either locked up in root systems and unharvestable, conserved in national parks or wilderness areas crucial for biodiversity, or simply in far Siberia or the middle of the Amazon, where there are no roads and no way to harvest it.
There are arguments against this imminent vegetal limit, Running said: It's arguably possible that humanity could increase plant production with fertilizer or irrigation though both of those are also in limited supply and have downsides such as pollution , or that we could construct more roads into the Amazon to avail ourselves of more natural resources. But a large enough boost to make a significant difference would have to number in the tens of percentage points, Running said, which seems unlikely.
About This Item
The findings are also an argument against hoping the biofuels will solve the planet's energy woes. Running calculated that if humans turned every bit of the last 10 percent of available plant production to bioenergy, it would only cover 40 percent of current energy needs. Show discussion. Science on NBCNews. Will Earth Run Out of Plants? Below: x Jump to discuss comments below discuss x Next story in Science related. Discuss: Discussion comments. Expand Collapse.
- Objects First with Java: A Practical Introduction Using BlueJ.
- Will Earth Run Out of Plants? - Technology & science - Science - LiveScience | NBC News.
- Data Integration in the Life Sciences: 9th International Conference, DILS 2013, Montreal, QC, Canada, July 11-12, 2013. Proceedings.
- Transgenics in Endocrinology.
- Thanks, Dad.
- Dream Not of Other Worlds: Teaching in a Segregated Elementary School,1970 (Sightline Books);
View all comments. Leave your comment.
Most active discussions votes comments. Related: Science Advertise. More from. Click on the cover image above to read some pages of this book!
The Limits to Growth Revisited by Ugo Bardi, Paperback | Barnes & Noble®
First hailed as a great advance in science, "The Limits to Growth" was subsequently rejected and demonized. However, with many national economies now at risk and global peak oil apparently a reality, the methods, scenarios, and predictions of "The Limits to Growth" are in great need of reappraisal. In The Limits to Growth Revisited , Ugo Bardi examines both the science and the polemics surrounding this work, and in particular the reactions of economists that marginalized its methods and conclusions for more than 30 years.
Bardi also addresses the all-important question of whether the methods and approaches of "The Limits to Growth" can contribute to an understanding of what happened to the global economy in the Great Recession and where we are headed from there. Country of Publication: US Dimensions cm : Help Centre. Track My Order. My Wishlist Sign In Join.
The Limits to Growth Revisited (2011) by Ugo Bardi
Be the first to write a review. Add to Wishlist.
Ships in 15 business days. Link Either by signing into your account or linking your membership details before your order is placed. Description Table of Contents Product Details Click on the cover image above to read some pages of this book!
Introduction p. All Rights Reserved.
Related The Limits to Growth Revisited (SpringerBriefs in Energy / Energy Analysis)
Copyright 2019 - All Right Reserved