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Our lab works broadly on biogeochemistry and ecosystem science, applied to a wide variety of both theoretical and practical questions. We enjoy trying to understand some of nature's complexity, and we believe strongly in applying objective science to sustaining the biosphere and human society. Our research encompasses a wide range of spatial scales, from microbial to ecosystem, regional, and global. Our research includes a broad range of inter-connected topical areas, illustrated below. Note that much of our research and many of our papers fall into two or more of these categories. Click on a topic to further explore research in the Howarth-Marino lab.

Research Areas Energy Global Change Biogeochem Metabolism Modeling Resources Biogeochemistry

Recent News

5 July

Howarth speaks at natural gas conference in Spain

On June 22, Bob gave a talk at the International Seminar on the Development of Natural Gas in Europe and Spain, titled "The effects of methane on climate change." A video of the talk (in English with Spanish subtitles) is available at this link on YouTube.

3 June

Howarth briefs White House Staff

On May 27, Bob briefed senior staff and scientists of the White House's Office of Science and Technology Policy in a 90-minute briefing titled "Natural Gas and Methane After COP21". You can read the Cornell news article about the talk here.

14 Apr

Public talk on natural gas expansion

Bob discussed the climate and economic impacts of natural gas expansion in a series of three public events co-sponsored by the Duke Environmental Law and Policy Clinic, The Climate Times, and NC Warn. Videos and information about the event can be viewed here.

13 Dec

Howarth represents Cornell at COP 21 climate negotiations in Paris

Howarth was one of four delegates who represented Cornell University at the United Nations' COP21 climate negotiations in Paris. For his blogs on his experience, see howarthlab.org. The 21st Conference of the Parties in Paris brought representatives from 190 countries together to address climate change, with the goal of achieving a universal agreement on actions necessary to limit global climate change.


View archived news stories.

Recent Publications

Hong et al, 2017. Advances in NANI and NAPI accounting for the Baltic drainage basin: spatial and temporal trends and relationships to watershed TN and TP fluxes. Biogeochemistry

Hong and Howarth, 2016. Greenhouse gas emissions from domestic hot water: heat pumps compared to most commonly used systems. Energy Science & Engineering

Howarth, 2015. Methane emissions and climatic warming risk from hydraulic fracturing and shale gas development: implications for policy. Energy and Emission Control Technologies

Gao et al, 2015. Evaluating anthoropogenic N inputs to diverse lake basins: A case study of three Chinese lakes. Ambio.

Lyon et al, 2015. Seasonal and regional patterns in performance for a Baltic Sea drainage basin hydrologic model. Journal of the American Water Resources Association.

Zhang et al, 2015. Anthropogenic point and non-point nitrogen inputs into Huai River Basin and their impacts on riverine ammonia-nitrogen flux. Biogeosciences Discussions.

Gao et al, 2015. Enhanced N input to Lake Dianchi Basin from 1980 to 2010: Drivers and consequences. Science of the Total Environment.