Sentences with phrase «chemical emissions systems»

Not exact matches

The models also include the greenhouse gas emissions and other pollutants that result from these processes, and they incorporate all of that information within a global climate model that simulates the physical and chemical processes in the atmosphere, as well as in freshwater and ocean systems.

The chemical reactions she has developed are widely used throughout the pharmaceutical industry to create new drug candidates, are being studied by chemical companies interested in accessing important chemicals used in farming, and are being utilized to prepare a type of chemical (tracer) that allows doctors to view the heart's sympathetic nervous system through positron emission tomography (PET) scans.

They are also important for environmental systems management, such as for vehicle emissions, and for production of many everyday products, said Jim Petersen, director of the Gene and Linda Voiland School of Chemical Engineering and Bioengineering.

It is known that various chemical additives (e.g., nitrapyrin or coated calcium carbide) can suppress nitrous oxide emissions from nitrogen - fertilized crop production systems.

This increased exposure for CDR approaches, which encompass both biological (e.g. afforestation, ecosystem restoration, land management, biochar, and bio-CCS) and chemical (e.g. direct air capture, enhanced mineral weathering) techniques — is a good thing for the climate change debate: we will likely need to have scalable, sustainable, cost - effective CDR systems as well as ways to reduce our emissions to avoid catastrophic climate change.

Citing mining waste as well as chemical dumping and emissions from industry as key polluters, the article provides an excellent examination of the many factors, including the shortfalls in the regulatory systems, contributing to the degradation of US drinking water supplies.

And that doesn't even count more than $ 400 million spent at our refineries and more than $ 200 million at our chemical facilities to reduce greenhouse gas emissions as part of our Global Energy Management System.

A potentially game - changing breakthrough in artificial photosynthesis has been achieved with the development of a system that can capture carbon dioxide emissions before they are vented into the atmosphere and then, powered by solar energy, convert that carbon dioxide into valuable chemical products, including biodegradable plastics, pharmaceutical drugs and even liquid fuels.

The model studies plus the theory of chemical feedbacks in the CH4 - CO-OH system (Prather, 1994) firmly established that the atmospheric lifetime of a perturbation (and hence climate impact and GWP) of CH4 emissions was about 50 % greater than reported in the FAR.