Résumé/Abstract Electricity generation provides 18,000 terawatt-hours of energy a year,
around 40% of humanity's total energy use. In doing so it produces more than 10 gigatonnes
of carbon dioxide every year, the largest sectoral contribution of humanity's fossil-fuel ...

" The first car driven by a child born today could be powered by hydrogen and pollution-
free," declared former US president George W. Bush in 2003, as he announced a US $1.2-
billion hydrogen-fuel initiative to develop commercial fuel-cell vehicles by 2020.

The behaviour of systems as diverse as earthquakes and hard drives is influenced by
frictional motion and its strength. What at first glance appears to be a continuous sliding
process between touching surfaces is in fact a product of a series of'slip'and'stick'events ...

... Authors: Tollefson, Jeff. Publication: Nature, Volume 451, Issue 7181, pp. ... Abstract. If biofuels are
to help the fight against climate change, they have to be made from more appropriate materials
and in better ways. Jeff Tollefson asks what innovation can do to improve the outlook.

When US government scientists began sampling the air from a tower north of Denver,
Colorado, they expected urban smog—but not strong whiffs of what looked like natural gas.
They eventually linked the mysterious pollution to a nearby natural-gas field, and their ...

02 January 2013-Losses of up to 9% show need for broader data on US gas industry's
environmental impact. Scientists are once again reporting alarmingly high methane
emissions from an oil and gas field, underscoring questions about the environmental ...

... Find all citations by this author (default). Or filter your current search Tollefson J. Find all citations
in this journal (default). Or filter your current search. Nature [2014, 505(7483):276-278].
2014/02. Type: News DOI: 10.1038/505276a. Abstract. Highlight Terms. ...

... Auteur(s) / Author(s). TOLLEFSON Jeff ; Résumé / Abstract. A new generation of lithium-ion
batteries, coupled with rising oil prices and the need to address climate change, has sparked
a global race to electrify transportation. Jeff Tollefson investigates. Revue / Journal Title. ...

... default). Or filter your current search. Tollefson J. Find all citations in this journal (default).
Or filter your current search. Nature [2007, 450(7168):334-335]. 2007/12. Type: News
DOI: 10.1038/450334a. Abstract, Highlight Terms. Read ...

When the planting season arrives later this year, farmers in the United States will have a
new way to safeguard their crops from drought. Last week, DuPont subsidiary Pioneer Hi-
Bred International, headquartered in Johnston, Iowa, announced plans to release a series ...