Harvard Voices on Climate Change: Biodiversity and Climate Resilience

Why It Matters

Understanding and preserving biodiversity is now a measurable climate solution, guiding restoration investments and informing corporate carbon strategies worldwide.

Key Takeaways

• Harvard's herbarium digitizes millions of specimens using spectroscopy for trait data.
• Intact natural areas enable forest recovery after historic deforestation worldwide.
• Diverse tree mixtures boost carbon sequestration and resist pests and pathogens.
• Global restoration targets aim to protect 30% land, restore another 30%.
• Remote sensing advances allow real‑time monitoring of biodiversity and ecosystem health.

Summary

Harvard’s latest Harvard Voices on Climate Change episode spotlights the university’s interdisciplinary work linking biodiversity to climate resilience. Hosted by the Salata Institute, the discussion features Janine Cavender‑Bares, director of the Harvard University Herbaria, who outlines how the world’s largest botanical collection is being transformed into a digital, spectroscopic data engine for functional traits, chemistry and morphology.

The conversation underscores three research pillars: first, the critical role of intact natural habitats in enabling forest regrowth after centuries of logging in New England, China and Brazil; second, the UN‑backed goal to protect 30 % of land and restore another 30 % of degraded ecosystems, illustrated by large‑scale seed‑ling nurseries in Brazil; and third, experimental evidence that mixed‑species forests outperform monocultures in carbon capture, growth rates and pest resistance, as demonstrated in long‑running plots at Harvard Forest, Cedar Creek and Chinese BEF sites.

Concrete examples punctuate the talk: the rapid recovery of New England’s 80 % forest cover, the resurgence of Brazil’s Atlantic forest through the Regreen initiative, and the detection of oak‑wilt and hemlock‑adventive pathogens using remote‑sensing and ground‑level monitoring. Researchers also highlight how diverse canopy architecture buffers microclimate extremes, reducing stress for shade‑sensitive species and enhancing overall ecosystem function.

These findings have direct policy and business implications. By quantifying biodiversity’s climate‑mitigation services, Harvard’s work provides data that can inform carbon markets, land‑use planning and corporate sustainability strategies, while the scalable digitization of herbarium specimens offers a new frontier for monitoring global biodiversity health.

Original Description

The Salata Institute for Climate and Sustainability and the Harvard Alumni Association presents the next installment of Harvard Voices on Climate Change, a virtual series showcasing Harvard faculty and fellows on different dimensions of the climate challenge.

Featuring Jeaninne Cavender-Bares, Professor of Organismic and Evolutionary Biology; Director of the Harvard University Herbaria, this discussion examines how biodiversity shapes ecosystem responses to a changing climate and how advances in science can support global efforts to monitor and assess biodiversity and ecosystem services. This work underpins the recently launched Harvard University Biodiversity Initiative for Planetary Stewardship (HUBS), which brings together cross-disciplinary research to better understand, monitor, and sustain biodiversity to advance scalable solutions.

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