Coal power plants and mines have become a global source of carbon emissions, and that has led to the development of carbon-capture technologies that can be used to reduce the amount of carbon dioxide that gets emitted.

One of the most common techniques for capturing CO2 is coal-burning power plants, which can use a variety of materials to capture CO2.

The problem is that while the technology works in a few different ways, the amount and types of materials used to capture carbon are not always consistent.

As a result, capturing CO1 and CO2 from power plants is not always a viable option.

As part of the International Energy Agency’s 2015 climate summit, the U.S. will host the IEA’s 2020 meeting, in which the U, U.K., Canada, and China will discuss the future of CO2 capture technology.

For this meeting, the IAEA has invited leading researchers and experts from around the world to share their research on the science and technology behind CO2-capturing technologies.

While some of the technologies that the IEF will explore in this meeting will be well-known to the general public, some of them will not.

Some of the topics include the feasibility of using a combination of solar panels and water-powered heat pumps to capture emissions from coal-fired power plants.

We spoke with Matthew L. Hensley, an associate professor of atmospheric science at Duke University, about the research that the group is planning to present.

We asked Hensleys questions about CO2 capturing, the process of capturing carbon, and how carbon dioxide emissions from power plant systems are managed.

This interview has been edited for length and clarity.