Energy Exchange

Robust, reliable data is key to unlocking global methane reductions

By Dan Grossman and Daniel Zavala-Araiza / Published: November 21, 2023

Photo from “Romanian Methane Emissions from Oil and Gas” project, part of “Methane Goes Mobile – Measurements and Modeling (MEMO2)” campaign sponsored by the European Union’s Horizon 2020 research and innovation program- to assess context and quantity of Romania’s methane emissions

Amidst all the positive momentum behind reducing global oil and gas methane emissions lies a critical challenge: If we’re going to reduce global methane emissions, we need accurate and trustworthy numbers to define the scope of the problem, assess company and country performance and track emissions over time and against reduction goals.

Because you can’t manage what you don’t measure, accurately.

Posted in General / Authors: dgrossman, dzavalaaraiza / Comments are closed

Mexico can rebuild a cleaner, stronger energy economy post COVID-19

By Daniel Zavala-Araiza / Published: June 22, 2020

This piece was first published in El Universal

Times of great turmoil sometimes bring the opportunity for great progress. As leaders around the world work to protect the sick and vulnerable from COVID-19, while also moving to restart their economies, they have a chance to rebuild better — creating a world that’s cleaner and healthier than before. This means investing in an economy that creates more jobs and less pollution, including less of the air pollution that causes diseases that put people at higher risk for severe illness from COVID-19.

It should be a world with fewer deaths from heart and lung disease triggered by air pollution, a world with a safer and more stable climate for our children and grandchildren. This is the kind of world we can create if we heed the lessons of this terrible pandemic.

Posted in Air Quality, Clean Energy, Climate, Electric Vehicles, Methane, Methane regulatons, Natural Gas / Tagged Mexico | Comments are closed

Super-emitters Are Real: Here Are Three Things We Know

By Daniel Zavala-Araiza / Published: January 16, 2017

As part of our landmark 16-study series and ongoing work in measuring methane emissions, we previously published a paper that compared and reconciled top-down (airborne-based measurements ) with bottom-up (emissions inventory, using ground-based measurements) emissions.

This paper found that 1% of natural gas production sites accounted for 44% of total emissions from all sites, or 10% of sites 80% of emissions; emission estimates were based on facility-wide (site-based) measurements. Sites or equipment that produce disproportionate shares of total emissions are often called “super-emitters”. A big question that remained was what caused some sites to become a super-emitter; this remained a “black box” without additional knowledge about which components or operational conditions within a site could trigger the high-emissions.

Posted in General, Methane, Natural Gas / Comments are closed

Cautionary Tale for Mexico on Oil and Gas Climate Pollution

By Daniel Zavala-Araiza / Published: September 19, 2016

New findings by NASA scientists attributing a giant, invisible cloud of methane – nearly 5 times the size of Mexico City – over the southwestern U.S. to the region’s sprawling web of oil and gas facilities raise important new concerns not just on this side of the border, but for Mexico as well.

Methane is an extremely potent greenhouse gas, with more than 80 times the warming power of carbon dioxide over a 20-year timeframe. Scientists estimate that methane contributes to about 25 percent of today’s warming. Cleaning up methane also reduces other pollutants: both ozone precursors that affect air quality and air toxics that erode human health.

The recent NASA paper linking the methane cloud to production, processing and distribution of oil and natural gas also notes that just a small portion of these sites, about 10%, were responsible for more than half the emissions. This is just the most recent example of a long list of scientific studies that have found that subset of sites or facilities disproportionately account for the majority of emissions. Scientists have called this subset of sites super-emitters. Read More »

Posted in General, Methane, Natural Gas / Tagged global methane, Mexico | Comments are closed

Una Clara Advertencia Para México Acerca de la Contaminación Climática de su Industria Petrolera

By Daniel Zavala-Araiza / Published: September 19, 2016

Un estudio publicado recientemente por científicos de la NASA contribuyó a encontrar al responsable de una gran nube invisible de metano extendiéndose en el suroeste de los Estados Unidos y cuyo tamaño es 5 veces más grande que la Ciudad de México. El estudio permitió atribuir este foco de emisiones a la creciente red de instalaciones de la industria petrolera en dicha región – Este descubrimiento levanta preocupaciones no solo para nuestros vecinos del norte, sino también para México.

El metano es un gas de efecto invernadero extremadamente potente. En los primeros veinte años después de ser emitido, el metano es más de 80 veces más potente en calentar la atmosfera que el dióxido de carbono. Los científicos estiman que el metano contribuye aproximadamente a 25% del calentamiento que ya experimentamos hoy en día. En adición a sus implicaciones climáticas, reducir sus emisiones también permite reducir otros contaminantes que se emiten en conjunto con el metano: tanto precursores de ozono que afectan la calidad del aire, como tóxicos que afectan la salud humana. Read More »

Posted in Air Quality, General, Methane, Natural Gas / Tagged global methane, Mexico | Comments are closed