Perros que detectan fugas y salvan vidas

Desde detectar fugas ocultas en redes de agua potable y termitas en edificios hasta identificar enfermedades humanas en laboratorios. Investigamos el papel poco conocido pero crucial de algunos perros en tareas técnicas y científicas.

ISABEL RUBIO ARROYO | Tungsteno

 

Son los mejores amigos del hombre, pero su lealtad va más allá de la simple compañía. Con un olfato que supera en miles de veces el del ser humano y una inteligencia y capacidad de entrenamiento fuera de lo común, los perros se han convertido en héroes modernos: son capaces de detectar fugas, identificar plagas, colaborar en diagnósticos médicos y realizar hazañas que han salvado vidas.

 

Perros detectores de fugas

 

Algunos perros han revolucionado la detección de fugas ocultas en redes subterráneas de agua potable. Suki, pionera en Latinoamérica, identifica pérdidas que de otro modo serían invisibles, incluso bajo asfalto o tierra. El proceso comienza con imágenes satelitales para señalar zonas críticas, y después el perro rastrea y marca con precisión el punto exacto gracias a su olfato, capaz de detectar cloro a gran profundidad. “Tras un acucioso entrenamiento ha recorrido 235 kilómetros, detectando 608 fugas con una tasa de respuesta positiva de un 96%, permitiendo recuperar agua equivalente al consumo anual de más de 10.000 personas”, explicó Franco Nicoletti, gerente de Distribución y Recolección de Aguas Andinas, al periódico EL PAÍS.

 

Suki, una perra entrenada en Chile para detectar fugas de agua ocultas bajo tierra. Crédito: CNN Chile.

 

También se han implementado programas de este tipo en países como Bélgica. Allí la empresa The Sniffers comenzó en 1991 a utilizar perros para detectar fugas en instalaciones químicas rurales y de difícil acceso. “Nuestros perros localizan fugas de gas, fugas de aceite, fugas en cables de alta tensión refrigerados por aceite y tomas ilegales con rapidez, precisión y eficiencia”, explica la empresa.

 

Canes rastreadores de plagas ocultas

 

Las termitas provocan daños importantes en edificios de todo el mundo. Existen perros entrenados para detectarlas. En los años 80, la Universidad Estatal de Ohio certificó equipos de beagles capaces de localizar colonias vivas de termitas, incluso cuando había tan solo ocho ejemplares en un trozo de madera. Estos canes también pueden detectar moho. Según la compañía Mold Solutionsson capaces de identificar esporas y micotoxinas con una sensibilidad entre 1.000 y 10.000 veces superior a la humana. De esta forma, agilizan las inspecciones, al localizar moho sin necesidad de métodos invasivos, lo que ahorra tiempo y costes.

 

Aliados en laboratorios

 

Los perros tienen un papel emergente como herramienta de detección precoz cribado de enfermedades humanas, gracias a su capacidad olfativa para identificar compuestos orgánicos volátiles específicos asociados a diferentes patologías. Perros entrenados pueden discriminar entre muestras de individuos sanos y enfermos con patologías como diferentes tipos de cáncer (pulmón, próstata, mama, ovario, melanoma, osteosarcoma) o infecciones virales como la COVID-19.

 

Los investigadores entrenan a perros para detectar la COVID-19. Crédito: CBS New York.

 

En estudios controlados, la sensibilidad de los perros para detectar la COVID-19 ha oscilado entre el 81% y el 97%, mientras que la especificidad se ha situado entre el 91% y el 100%. Los investigadores señalan que estos resultados son comparables a los de pruebas diagnósticas convencionales, aunque varían según factores como el entrenamiento, el manejo de las muestras o la experiencia del perro. Su uso en hospitales aún es limitado por la falta de protocolos estandarizados y la necesidad de estudios más amplios.

 

Héroes de cuatro patas

 

Muchos perros han destacado a lo largo de la historia por su lealtad, valentía e inteligencia, al lograr hazañas que los han convertido en verdaderas leyendas. Laika, una perra callejera de Moscú, fue el primer ser vivo en orbitar la Tierra en 1957, un sacrificio que abrió el camino a la exploración espacial humana. Balto y Togo, perros de trineo siberianos, lideraron la “Gran Carrera de la Misericordia” en 1925, transportando un suero contra la difteria a Nome, en Alaska, y salvando numerosas vidas.

 

Laika fue una perra callejera de Moscú que pasó a la historia por ser el primer ser vivo en orbitar la Tierra. Crédito: Euronews

 

Entre los perros que también alcanzaron fama y reconocimiento por sus hazañas, está el sargento Stubby. Este bull terrier fue el perro militar más condecorado de la Primera Guerra Mundial, desempeñando labores de detección y rescate en las trincheras. También es recordado Barry, un San Bernardo que rescató a más de 40 personas en los Alpes suizos en el siglo XIX. Su cuerpo embalsamado se conserva en un museo de Berna como homenaje a su heroísmo. Estos ejemplos muestran cómo los perros han dejado una marca imborrable en la historia gracias a su valor y fidelidad.


Tungsteno es un laboratorio periodístico que explora la esencia de la innovación.

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Sacyr updates Sustainable Financing Framework

  • This document, first published in 2023, outlines the core principles of the company's ESG strategy and is aligned with the United Nations’ Sustainable Development Goals.
  • This updated version of the Framework incorporates new KPIs connected to Scope 3 CO2 emissions, reflecting the company's commitment to supply chain decarbonization.
  • International certification and classification agency Det Norske Veritas (DNV) acted as an independent observer issuing a positive SPO (Second Party Opinion).

Sacyr published today the second version of its Sustainable Financing Framework, renewing its commitment to integrating sustainability into the company's financing activities.

Updates to the framework include revisions to the KPIs related to Scope 1 and 2 CO2 emissions. This modification aligns with the calculation methodology based on the consolidation approach used in the company's Financial Statements, in accordance with the CSRD (Corporate Sustainability Reporting Directive) and the Group's change in perimeter following the divestment of its services business.

In addition, a new KPI linked to Scope 3 emissions has been incorporated, consistent with the company's strategic sustainability objectives. All of these indicators have been validated by the SBTi.

The document governs the eligibility of Sacyr projects’ for various sustainable financing instruments available in the market, following the principles established by the International Capital Market Association (ICMA) and the Loan Market Association (LMA) for green, social, and sustainability-linked financial instruments, using established KPIs.

These principles obey a set of international standards that an increasing number of companies are voluntarily adopting, promoting the inclusion of increasingly rigorous environmental, social, and governance (ESG) criteria in financing decisions.

An innovative tool

Sacyr first published its Sustainable Financing Framework in 2023 as a tool to enhance the transparency, disclosure, and integrity of its sustainable financing initiatives, adhering to the highest international sustainability standards to ensure the rigor and quality of reporting. 

The company received a positive Second Party Opinion (SPO) from Det Norske Veritas (DNV), an international certification and classification agency acting as an independent observer.

The framework offers an innovative scope of application, encompassing financial instruments such as green and social bonds or loans, as well as transactional banking products (leasing, supply chain finance, guarantee lines, etc.) and a KPI focused on the reduction of CO2 emissions.
Sacyr's core markets in Europe, South America, and English-speaking countries are eligible for sustainable financing.

Financial resources obtained through sustainable financing instruments, such as bond issuances or loan agreements, will be used exclusively to finance new projects or to refinance existing projects, either partially or in full.

In addition, the Framework aligns with key elements of the company’s ESG strategy and translates them into contributions towards the United Nations' Sustainable Development Goals (SDGs).

Leaders in sustainable financing

Sustainability is a central component of Sacyr's corporate strategy, and the company has been involved in numerous sustainable financing operations.

Examples include the execution of a €500 million syndicated loan with 25 financial institutions, linked to the achievement of environmental commitments defined by emissions reduction indicators, as well as the recent financing of the Buenaventura – Loboguerrero – Buga road corridor in Colombia.

Furthermore, Sacyr issued the first social bond in Colombia for the Puerta de Hierro-Cruz del Viso 5G road (recipient of a LatinFinance award for best local currency financing in 2021), financed the 4G Rumichaca-Pasto highway (recognized with multiple LatinFinance awards, as well as accolades from Bonds & Loans, Proximo, and IJGlobal), and completed the social refinancing of the Pamplona-Cúcuta highway (awarded by Bonds & Loans as the best structured financing in Latin America in 2023).

Sacyr is deeply committed to driving societal progress towards a sustainable future as an intrinsic value of its business and will continue to take ambitious steps in this direction throughout the company’s upcoming strategic cycle.

Sustainable Financing Framework

 

Sacyr's sustainable financing framework has been created to facilitate the transparency, disclosure, and integrity of the company's sustainable financing initiatives, applying the highest international sustainability standards to ensure the rigor and quality of the report.

Sacyr is keen to pursue an innovative sustainable financing approach, intended for the holding company and any of its subsidiaries, which includes sustainability-linked bonds, sustainability-linked loans, green bonds, green loans, social bonds, social loans, and other forms of subsidized financings.

The framework covers both green and social finance associated with the use of proceeds and sustainability-linked that is associated with meeting certain KPIs.

This Framework has been established in accordance with the Green Bond Principles (GBP), Social Bond Principles (SBP), Sustainability-Linked Bond Principles (SLBP) set by ICMA, and the Green Loan Principles (GLP), Social Loan Principles (SLP) and Sustainability-Linked Loan Principles (SLLP), set by LMA.

Sustainable Financing Framework 2025 - 7542 Kb

Sacyr Second Party Opinion Report 2025 - 686 Kb

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  • Corporate

9M 2025 Results presentation

The company announces its upcoming results presentation for the first nine months of 2025. The results report will be published on November 6 after market close. The conference call will be held the following day, November 7 at 12:00 (CET)

The results will be released on Thursday, November 6th, 2025, after market close in CNMV and in our website.

The results presentation will be held on Friday, November 7th, 2025, at 12:00h (CEST) by audio-webcast in real time, 

Click here to access the webcast.

Featured projects
  • Results

1H 2025 Results presentation

The publication of the first half 2025 results will take place on Tuesday, July 29, after market close, both on the CNMV and on this website.

The analyst presentation will be held on Wednesday, July 30 at 12:00 PM CEST

Click here to watch the webcast.
 

On July 29, after market close, the first half 2025 results will be published both on the CNMV and on this website.

The analyst presentation will take place on July 30, 2025, at 12:00 PM CEST and will be broadcast live via audio webcast.

Click here to watch the webcast.

 

Featured projects

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