Daniel is an environmental engineer with more than 25 years of experience in water systems and climate change adaptation and mitigation.

Daniel was honoured in 2024 as an International Member of the US National Academy of Engineering (NAE) for his ‘distinguished contributions to engineering, the advancement of wastewater treatment technologies and the adaptation of treatment processes to climate change’.

Daniel is a Fellow and former Vice President of the International Water Association (IWA) and a Fellow of the Water Environment Federation.

He is also a Fellow of the Water-Energy Nexus Center at the University of California, Irvine, where he contributes to research and innovation in the field.

Daniel was also the Chair of the Independent Technical Advisory Panel of the Green Climate Fund where he reviewed over 200 funding proposals.

Daniel holds a Civil Engineering degree from the University of Buenos Aires, an M.Sc. in Environmental Engineering from McMaster University (Canada) and an MSc in Technology Management from the Massachusetts Institute of Technology (MIT). Daniel is a certified Professional Engineer (P.Eng.) in Ontario, Canada. He has co-authored 12 books and over 100 technical articles.

David is an expert on climate and nature finance policy, blended finance and sustainable investing.  He advises philanthropies, governments, and international organizations, including the UNFCCC on climate finance and multilateral development banks on designing and implementing climate and environmental finance solutions. David previously served as Senior Vice President at the World Wildlife Fund, covering climate and nature finance, US government relations and global partnerships. Prior to that, he was Climate Programs head at the Asian Development Bank, overseeing annual investments of $3 billion. He worked in academia and consulting as well as for the US Agency for International Development on related topics, with a focus throughout on the Asia-Pacific region. He currently serves as climate finance advisor to the Global Environment Facility and to the Climate Investment Funds as Co-Chair of its Independent Expert Group on Nature, People and Climate. He holds a PhD in resource economics from the University of Hawaii, East-West Center, with undergraduate training in environmental policy and meteorology.

Manuel Bueno is a senior executive with over 15 years of experience in climate finance and impact investment in emerging markets. His expertise spans rural finance across multiple sectors and geographies, covering agriculture, forestry, fisheries, and manufacturing across Latin America, Sub-Saharan Africa, and Southeast Asia. He has designed and implemented innovative private investment vehicles that mobilize blended capital for development and has a strong track record in structuring, deploying, and supervising private debt and mezzanine finance. Manuel has also advised numerous banks, private investors, corporations, and SMEs, helping them navigate complex climate finance landscapes to drive sustainable growth.

Andrea Maggiani is a climate tech expert, angel investor, and founder of Carbonsink—Italy’s leading climate consultancy, acquired by SouthPole in 2021. With over 15 years of experience in carbon markets, sustainability, and decarbonization, he has led and scaled transformative climate initiatives, including more than 40 carbon projects across Africa. Andrea has managed green asset portfolios exceeding €200 million and has shaped climate finance strategies for corporate and institutional stakeholders worldwide.

A recognized industry leader, Andrea is a founding member of ICROA and a frequent speaker at global climate and policy forums, including the G7, UNFCCC, OECD, TEDx, UNGC, and the World Bank. He currently advises international organizations, companies, and climate startups on carbon markets, Article 6, and decarbonization pathways—bridging on-the-ground experience with strategic innovation in climate tech.

Colleen Green is a Senior Executive with 20+ years of experience in sustainable development, innovative finance, and private sector engagement. Her technical expertise spans financial inclusion, financial services and financial sector development, blended finance, and climate finance, alongside small and medium enterprise (SME) development, gender lens investing, and livelihoods. She has worked with governments, financial institutions, DFIs, community groups, and the private sector in 26 countries, predominantly in Africa and Eastern Europe.

Her work has included leading or contributing to studies, analyses, and evaluations of investment ecosystems, sustainable finance mechanisms, and service delivery aimed at improving resilience for vulnerable communities, working with USAID, FCDO, World Bank, IFC, Financial Sector Deepening programmes, and the Gates Foundation. The former Vice President for Economic Growth in DAI’s Development Innovations Unit, Colleen oversaw the design and technical delivery of DAI’s economic growth portfolio. This included managing a team of 30 DAI technical specialists to support 35+ USAID- and World Bank-funded programs, and leading the strategy, execution, and win of more than $2.2 billion including new sustainable economic growth initiatives aimed at greening the private sector, especially SMEs, improving market access, enhancing access to finance, mobilizing private capital for climate adaptation and mitigation, and boosting low-carbon economic growth.

Christy is a senior climate and sustainability executive with over 20 years of experience designing, leading and advising high-impact nature, biodiversity and climate finance programs across 20+ countries. For six years, she served as the Director for Green Invest Asia, which is recognized for utilizing an array of climate finance products to catalyze $400M in investments while delivering measurable projected emissions reductions of over 100M metric tons CO₂ein the forestry and land use sector in Southeast Asia.  A strong believer in the power of partnerships, she has successfully designed and facilitated multi-stakeholder initiatives with governments, civil society and the private sector to improve environmental and social safeguards for infrastructure development in the Mekong River Basin and multiple pre-competitive collaborations among corporate industry leaders to address climate impacts within supply chains. 

Previously, Christy worked with DAI where she held several roles, including the Natural Resources Technical Area Manager for two years and three overseas leadership positions in the Philippines, Venezuela and Thailand. For ten years, she served as Pact's Country Director for Thailand while simultaneously leading two regional environment and climate programs financed by USAID. While Thailand, she served one year as part of the US Chamber of Commerce's Food and Agriculture committee.

Sashi Jayatileke is a senior blended finance specialist, formerly with USAID’s Climate Finance Team where she led the design of catalytic financing initiatives to unlock private investment for climate action. She managed USAID's Climate Finance portfolio and has worked extensively across Africa, Asia, and Latin America, advising on investment strategies that align commercial returns with development impact. Her expertise spans deal structuring, risk-sharing instruments, and financial innovation to expand access to capital in underserved markets.  She is a trusted advisor to donors, DFIs, and investors seeking scalable, market-based solutions for development challenges. Sashi holds an MSc from the London School of Economics and a BA from Vanderbilt University.

Juan Chang is currently the Head of Technical Operations of Permian Global, a private sector company dedicated to investing in in tropical forest conservation in Colombia, Brazil, Indonesia and Malaysia. Previously he led the forest and land use sector at the Green Climate Fund (GCF) promoting and overseeing a portfolio of forest conservation and restoration projects of more than 1.3 billion USD in more than 30 countries. Before that, he was the Forests and Climate Change Senior Specialist of the Inter-American Development Bank (IDB) based in Washington DC. Before joining IDB he worked as Forestry GreenHouse Gas Auditor accredited by the UNFCCC and the voluntary carbon standards, responsible for assessing projects in more than 20 countries in Africa, Asia and Latin America. He started working for several years in biodiversity conservation and protected areas management in the Peruvian Amazon, accumulating more than 20 years of vast experience across the globe.

Ralph Chami has over 32 years of experience as a financial economist, with 25 years at the International Monetary Fund (IMF). He has also served as a consultant for the World Bank and for the private sector. He is the Co-founder and CEO of Blue Green Future and Rebalance Earth, and holds visiting professor position at Williams College. He is an expert in a range of macro-financial topics including remittances, fragile states, financial inclusion, financial market development, banking regulation and risk management. 

Ralph is currently working on climate change and nature and biodiversity loss, developing a new framework for valuing natural capital, fauna and flora, to build an equitable and nature-positive economy. He has developed the new field "Science-Based Finance℠,” and is leading and advising on projects around the globe, working with SIDs, indigenous peoples in South Pacific and Native American tribes in the US, as well as governments in the Bahamas, Indonesia, Philippines, Saudi Arabia, among others.