Gauss International Consulting

Climate change | Air quality | Energy | Environment


Gauss  is a consultancy firm specialised in all areas of climate changeair qualityenergy and environment.

Our core activity is applied research providing expert assistance and support and sound data analysis, customized tools, good practice guidance and sustainable development policies evaluation.

The team is composed by engineers and researchers with a multidisciplinary background – statistics, economics, environmental sciences and programming – as well as multilingual competences and broad international experience.

Gauss main clients include international organizations such as the UNDPUNFCCCUNECEEEAEuropean Commission, the European Parliament and various ministries and national administrations (Ministry of Environment of Spain, Federal Public Service of the Environment of Belgium, Ministry of Ecology of France, European National Statistical Institutes, etc.).

Gauss has extensive in-country experience in EuropeLatin America and the Caribbean and Africa.



We benefit from having a professional team with all the necessary skills for the development of innovative projects – from inventory compilation and modelling (projections), to the assessment of policies and measures and the provision of scientifically based policy recommendations.

We are committed to provide transparent and comprehensive services based on a direct and continuous contact with the client and stakeholder’s engagement through meetings, workshops, task forces and working groups.

We use our experience and scientific and technical expertise to guide governments and stakeholders in their actions for sustainable development and for respecting international obligations and commitments in the field of climate change. These activities take always into account the work conducted within the scientific community.

We have a broad experience across many market sectors, geographical locations and institutions and have completed many assignments, often working with complex programme structures involving many organisational and government stakeholders.

We ensure empathy, honesty and integrity combined with responsible discussion and reporting. The approach is to implement a transfer of knowledge and capacity building perspectives along the projects duration.







María José (Pepa) López

Director || Researcher

Chemistry degree and Master in environmental engineering and management.

Over 25 years’ experience in research and consultancy on sustainability issues. In-country experience in over 60 countries through missions covering assessments, monitoring, training and reviews, capacity building, technical support and expert advice in climate change and energy policies and measures, energy statistics, greenhouse gas emissions, material flows, environmental economics, waste generation and management and resources efficiency.

European Comission Vice-chair and expert evaluator of environmental and energy research proposals.

UNFCCC Lead reviewer.

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Juan-L Martín Ortega

Researcher || Consultant

Degree in Environmental Sciences, Degree in economics and PhD(c) in economics.

Researcher and consultant in environmental economics. Expertise on climate change and air quality, particularly in the areas of air emission inventories compilation, emissions modelling, policy analysis and green finance.

UNFCCC and CRLTAP expert reviewer.

Chair of the Compliance Committee of the Protocol on Pollutant Release and Transfer Registers (PRTR).

Ana Derly Pulido

Researcher || Consultant

Chemical Engineer degree and a MSc on Environmental Engineering specialised in air quality and GHG emissions.

Ana has more than 14 years’ experience in the development of GHG emission inventories, development of scenarios and in the identification and assessment of mitigation policies and measures. Ana has been coordinator of the GHG emission inventory and mitigation report of Colombia and has developed an integrated MRV system for the transparent NDC tracking.

UNFCCC expert reviewer.

Ioannis Sempos

Associate Expert || Emission Inventories & projections

Chemical Engineer, MBA and PhD (NTUA, 2011).

Research and Teaching Associate at NTUA (January 2005-ongoing) and coordinator and scientific responsible of the team of NTUA for reporting under the United Nations Framework Convention on Climate Change, Kyoto Protocol and DG CLIMA (2007-today), in particular National GHG Inventory Reports, National Communications, Biennial Reports, KP initial reports, etc. as well as NECD inventories and projections.

UNFCCC lead reviewer.

Sander Akkermans

Researcher || Consultant

Sander Akkermans holds a master’s degree in environment and resource management and is environmental consultant on climate change and sustainability issues. Sander has a solid experience in the development of GHG emission inventories under the United Nations Framework Convention of Climate Change (UNFCCC) and in climate change policy analysis. Furthermore, Sander has experience in corporate social responsibility, producing greenhouse gas emission inventories in order to obtain external CO2 performance ladder certificates. He has also been involved in establishing the groundwork for new carbon offsetting initiatives for a non-profit governmental organisation, which has granted him experience in a broad field of social and environmental challenges.

Daniela Da Costa

Researcher || Consultant

Daniela Da Costa is a Civil Engineer with a Specialization in Energy and Environment and a Master´s Degree on Environmental Design and New Technologies. Currently working as an Environmental Consultant, Daniela specializes on climate change mitigation, renewable energies, energy efficiency and waste management. She has experience as an Environmental Engineering Research Assistant estimating the biogas generation of municipal solid waste with the aim to reduce fugitive emissions from sanitary landfill management. Additional experience focuses on energy efficiency methods to reduce the energy consumption and carbon footprint of the building sector.

Lucía González

Researcher || Consultant

Lucía González holds a master’s degree in Environmental Engineering and Management by the EOI and training in Agro-environmental Engineering by the Polytechnic University of Madrid (UPM).

She has professional experience in Spain and France in agricultural research and in the environmental consultancy sector. High predisposition and great communicative and adaptive skills. She is used to working in international and multicultural teams.

She is now developing her career in the International Institutional Field to encourage developing and developed countries to reach the SDGs in order to adapt and mitigate the impacts of climate change.

Pedro Puente

Researcher || Consultant

Pedro Puente holds a bachelor’s degree in environmental sciences and a master’s degree in environmental management and engineering. Pedro specialise in big data and its application to GHG emission inventories and projections. Pedro supports a wide range of projects at Gauss, bringing its technical expertise in mitigation, carbon footprint estimation, and application of Agile methodologies. Before joining Gauss, Pedro estimated the carbon footprint of municipalities in Spain, proposing mitigation action plans based on the emissions profile of each municipality. Furthermore, Pedro has experience working as a laboratory technician and data analysis in the feeding and water quality sector.

Ángel Gabriel Rivas Fonfría

Researcher || Consultant

Ángel Gabriel Rivas Fonfría. Data scientist with over five years of experience in consultancy. Ángel holds a bachelor’s degree in Physics and extensive experience in international consulting. At Gauss, Ángel is responsible for maintaining and developing customized IT tools for data handling and processing. Furthermore, Ángel is specialized in the AFOLU sector and supports a wide range of projects at Gauss related to emission inventories and projections projects at international level. Before joining Gauss, he was involved in several consultancy projects regarding the operationalization of national elections for different countries, supporting the development of the necessary software for the correct delivery of the results, from voter registration to vote count and reporting of results. Currently, he is specializing in applied statistics, information processing, and machine learning.