New measurements quantify atmospheric greenhouse effect

Proof of the Atmospheric Greenhouse Effect

A recently advanced argument against the atmospheric greenhouse effect is refuted. A planet without an infrared absorbing atmosphere is mathematically constrained to have an average temperature less than or equal to the effective radiating temperature. Observed parameters for Earth prove that without infrared absorption by the atmosphere, the average temperature of Earth’s surface would be at l...

A New Laser Based Approach for Measuring Atmospheric Greenhouse Gases

In 2012, we developed a proof-of-concept system for a new open-path laser absorption spectrometer concept for measuring atmospheric CO2. The measurement approach utilizes high-reliability all-fiber-based, continuous-wave laser technology, along with a unique all-digital lock-in amplifier method that, together, enables simultaneous transmission and reception of multiple fixed wavelengths of ligh...

Atmospheric Chemistry and Greenhouse Gases

Effect of Inaccurate Measurements on Energy Consumption in Greenhouse Horticulture

The influence of inaccurate sensors, used in practice in greenhouse climate control, on the energy consumption of greenhouse horticultural production is investigated. It is shown that the inaccuracy of sensors, caused for instance by improper maintenance, leads to a higher energy use. Copyright © 2008 IFAC

Quantifying greenhouse-gas emissions from atmospheric measurements: a critical reality check for climate legislation.

Emissions reduction legislation relies upon 'bottom-up' accounting of industrial and biogenic greenhouse-gas (GHG) emissions at their sources. Yet, even for relatively well-constrained industrial GHGs, global emissions based on 'top-down' methods that use atmospheric measurements often agree poorly with the reported bottom-up emissions. For emissions reduction legislation to be effective, it is...