Blog
Paula Otero
Environmental and Sustainability Consultant
Biologist from the University of Santiago de Compostela with a Master’s degree in Natural Environment Management and Conservation from the University of Cádiz. After collaborating in university studies and working as an environmental consultant, I now apply my expertise at Manglai. I specialize in leading sustainability projects focused on the Sustainable Development Goals for companies. I advise clients on carbon footprint measurement and reduction, contribute to the development of our platform, and conduct internal training. My experience combines scientific rigor with practical applicability in the business sector.
Articles by Paula Otero
Practical guides
How to calculate your carbon footprint with incomplete data
You can calculate a carbon footprint with incomplete data, and the standards explicitly allow for it. The conditions are that every gap is filled with ...
Practical guides
How to collect scope 3 supplier data without being ignored
Getting scope 3 data out of a supplier takes three things: asking for a specific number instead of "your carbon footprint", sending the request from p ...
Practical guides
How to centralise emissions data across multiple sites and suppliers
Centralising emissions data across multiple sites and suppliers takes four steps, in this order: set and document the organisational boundary (operati ...
Legislation and regulation
Carbon footprint in Spanish public tenders: what is required and how to prove it
A carbon footprint is not mandatory in every Spanish public tender . It appears when the contracting authority decides to include it, and it can do so ...
Practical guides
Carbon footprint audit: how to prepare for verification and pass it
A carbon footprint audit is, in technical language, a verification : an independent accredited body checks that your company's greenhouse gas inventor ...
Practical guides
Excel alternatives for calculating your carbon footprint
There are four alternatives to Excel for calculating a carbon footprint: the official MITECO calculators, free web calculators, dedicated carbon accou ...
Practical guides
Plan A vs Persefoni vs Sweep: emissions reporting compared
Plan A , Persefoni and Sweep solve the same problem from different angles. Plan A is the most focused on European CSRD reporting and decarbonisation p ...
Practical guides
Sweep alternatives for ESG data management
The main alternatives to Sweep for ESG data management are Manglai, APlanet, Workiva, IBM Envizi, Normative and Greenly. Sweep targets large organisat ...
Practical guides
Plan A alternatives for decarbonisation and reporting
The closest alternatives to Plan A in August 2026 are Persefoni , Sweep , Normative , Watershed , Greenly , Cozero and Manglai . Plan A is a German ca ...
Practical guides
Persefoni alternatives for audit ready carbon accounting
The main alternatives to Persefoni for audit ready carbon accounting are Manglai, Watershed, Normative, Sweep, Workiva Carbon and IBM Envizi. Persefon ...
Practical guides
Normative alternatives for carbon footprint measurement
The main alternatives to Normative for carbon footprint measurement are Manglai, Greenly, Plan A, Cozero, Persefoni, Sweep and Greemko. Normative is a ...
Product carbon footprint
Carbon footprint in agriculture and the agri-food industry
The carbon footprint of agriculture and the agri-food industry is one of the largest on the planet: agrifood systems generate around a third of global ...
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