Podcast appearances and mentions of Peter H Raven

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Best podcasts about Peter H Raven

Latest podcast episodes about Peter H Raven

Finding Genius Podcast
Conservation Connections – Peter H. Raven, Celebrated Botanist and Conservationist – Conservation Can't Wait—A Serious Look at Climate Change, Population, and Future Scenarios

Finding Genius Podcast

Play Episode Listen Later Oct 30, 2019 24:15


Peter H. Raven, internationally celebrated Botanist, and Conservationist provides an interesting overview of his life's work in the life sciences. Raven has spent the better part of his life advocating for conservation, educating the public about the grave threats to Earth's biodiversity. His work and research are so significant that Time magazine hailed him as a “Hero for the Planet.” For four decades, Raven headed the Missouri Botanical Garden, a distinguished institution and world-class center for the advancement of conservation, botanical research, and education, and known worldwide for its horticulture display. Raven is currently President Emeritus of the Missouri Botanical Garden. Raven discusses his long background and current work promoting major scientific projects, from plant observation and study to conservation efforts. Raven discusses his decades of work and interest in the tropical rainforests, which house more species than anywhere else on Earth. He states that there are incredibly important implications for climate and that we need to preserve the trees and their interactions, and the storage of carbon within them to prevent global warming. He discusses the potential problems in detail, and that we effectively have about two generations to correct the problems. The Missouri Botanical Garden conservationist discusses consumption and population growth, and how it all affects preserved areas. Clearly, not enough is being done as our actions have demonstrated that preserved areas are not a high priority, unfortunately. Raven talks about the increasing population globally, and how it is important to empower women worldwide. As women are often ignored, Raven states, their true talents—that could be incredibly significant in the search for global crisis solutions—are wasted. He underscores the stupidity of ignoring women and the potentially massive contribution they could bring to global problems and issues.  Raven continues by discussing how we can empower smaller nations to help themselves, and form alliances to think globally regarding solutions to the world's problems. By helping to strengthen their infrastructure they can get more benefits from their own productivity. Additionally, Raven talks about the progress they are making globally, in agriculture and other areas. And he talks about the importance of social justice initiatives, helping some of the poorest countries in the world to rise up out of poverty and stabilize themselves.  As he states, there are ways we can help, by consuming less, recycling, living closer to our jobs, etc. But ultimately, the moral argument is what could really change things… essentially we all need to acknowledge that these are the right things to do, to make a difference, to help solve the poverty problem, and work toward conservation on a global scale. 

Carl Linnaeus Collection
The Young botanist, or, A sketch of the life of Linnaeus :

Carl Linnaeus Collection

Play Episode Listen Later Apr 30, 2018


By: Vernon, C.Publication Details: Boston :Munroe and Francis ;[1829]Contributed By: Missouri Botanical Garden, Peter H. Raven Library

young sketch botanist linnaeus carl von peter h raven raven library
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nymphaeaceae 1865

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Nymphaeaceae 1865By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Ilioneae (Aquifoliaceae), Rhamnaceae 1867-1881

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Ilioneae (Aquifoliaceae), Rhamnaceae 1867-1881By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Polygalaceae 1865-1877

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Polygalaceae 1865-1877By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nymphaeaceae 1864-1865

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Nymphaeaceae 1864-1865By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Magnoliaceae 1863-1876

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Magnoliaceae 1863-1876By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Malvaceae, Sterculiaceae 1861-1867

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Malvaceae, Sterculiaceae 1861-1867By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Cruciferae 1861-1867

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Cruciferae 1861-1867By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Papaveraceae 1860-1881

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Papaveraceae 1860-1881By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Portulacaceae 1851-1867

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Portulacaceae 1851-1867By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Caryophyllaceae 1841-1898

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Caryophyllaceae 1841-1898By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Capparidaceae 1881

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Capparidaceae 1881By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nelumbonaceae 1858-1864

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Nelumbonaceae 1858-1864By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nelumbonaceae 1860

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Nelumbonaceae 1860By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Cistaceae, Violaceae [undated]

Connecting Content through Archival Field Notes

Play Episode Listen Later Nov 11, 2016


Volume: Cistaceae, Violaceae [undated]By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
Correspondence : Bigelow and Engelmann, Bigelow to Engelmann, 1852-1853

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Bigelow to Engelmann, 1852-1853By: Bigelow, John M. 1804-1878Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nelumbonaceae, Nelumbium 1835-1860

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Nelumbonaceae, Nelumbium 1835-1860By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Ranunculaceae 1841-1875

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Ranunculaceae 1841-1875By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu ranunculaceae malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 2 : Vitis, Vitis: Plant Diseases: 1876-1882

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Vitis: Plant Diseases: 1876-1882By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Anonaceae, Berberaceae 1848-1876

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Anonaceae, Berberaceae 1848-1876By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Connecting Content through Archival Field Notes
George Engelmann : botanical notebook 1, Nymphaeaceae 1855-1865

Connecting Content through Archival Field Notes

Play Episode Listen Later May 3, 2013


Volume: Nymphaeaceae 1855-1865By: Engelmann, George, 1809-1884Contributed By: Missouri Botanical Garden, Peter H. Raven Library

notebook identification botanical engelmann nelu malvaceae peter h raven geraniaceae magnoliaceae raven library caryophyllaceae
Carl Linnaeus Collection
Hortus Cliffortianus :

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


By: Linné, Carl von, 1707-1778Publication Details: Amstelaedami [Amsterdam]:[s.n.],1737.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

plants clifford botany hortus peter h raven 1737 raven library
Carl Linnaeus Collection
Caroli Linnaei...Systema naturae per regna tria naturae, v.2

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v.2By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae : Impensis Direct. Laurentii Salvii, 1758-1759.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

tria systema regna peter h raven raven library
Carl Linnaeus Collection
Genera plantarum :

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiæ (Stockholm) :Impensis Laurentii Salvii ,1754.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

plants genera peter h raven raven library
Carl Linnaeus Collection
Caroli Linnaei...Systema naturae per regna tria naturae, v.1

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v.1By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae : Impensis Direct. Laurentii Salvii, 1758-1759.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

tria systema regna peter h raven raven library
Carl Linnaeus Collection
New illustration of the sexual system of Carolus von Linnaeus

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


By: Thornton, Robert John, 1837Publication Details: London : 1807.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Carl Linnaeus Collection
Systema naturae, per regna tria naturae :, v. 3

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v. 3By: Linné, Carl von, 1707-1778Publication Details: Vindobonae [Vienna] :Typis Ioannis Thomae ...,1767-1770.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Carl Linnaeus Collection
Systema naturae, per regna tria naturae :, v. 1, pt. 1

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v. 1, pt. 1By: Linné, Carl von, 1707-1778Publication Details: Vindobonae [Vienna] :Typis Ioannis Thomae ...,1767-1770.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Carl Linnaeus Collection
Caroli Linnaei ... Species plantarum, vol. 1

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: vol. 1By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae :Impensis Laurentii Salvii,1753.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

species classification botany peter h raven raven library
Carl Linnaeus Collection
Systema naturae, per regna tria naturae :, v. 2

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v. 2By: Linné, Carl von, 1707-1778Publication Details: Vindobonae [Vienna] :Typis Ioannis Thomae ...,1767-1770.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Carl Linnaeus Collection
Caroli Linnaei ... Species plantarum, vol. 2

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: vol. 2By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae :Impensis Laurentii Salvii,1753.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

species classification botany peter h raven raven library
Carl Linnaeus Collection
Systema naturae, per regna tria naturae :, v. 1, pt. 2

Carl Linnaeus Collection

Play Episode Listen Later May 21, 2012


Volume: v. 1, pt. 2By: Linné, Carl von, 1707-1778Publication Details: Vindobonae [Vienna] :Typis Ioannis Thomae ...,1767-1770.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.1-2 (1678-1679)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.1-2 (1678-1679)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.3-4 (1682-1683)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.3-4 (1682-1683)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.5-6 (1685-1686)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.5-6 (1685-1686)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.7-8 (1686-1688)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.7-8 (1686-1688)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.9-10 (1689-1690)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.9-10 (1689-1690)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Hortus Indicus Malabaricus :, v.11-12 (1692-1703)

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


Volume: v.11-12 (1692-1703)By: Reede tot Drakestein, Hendrik van, 1637-1691 - Almeloveen, Theodoor Jansson ab, 1657-1712 - Commelin, Johannes, 1629-1692 , Nederlantze Hesperides. - Munniks, Johannes, 1652-1711 - Poot, Abraham van, approximately 1617-1687 - Syen, Arnold, 1640-1678 - Casearius, Johannes, approximately 1642-1677 - Someren, Joannes van. - Dyck, Jan van. - Boom, Henrik & Dirk.Publication Details: Amstelaedami :sumptibus Johannis van Someren, et Joannis van Dyck,1678-1703.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Rarest of the Rare
Iconographie descriptive des cactées, ou, Essais systématiques et raisonnés sur l'histoire naturelle, la classification et la culture des plantes de cette famille

Rarest of the Rare

Play Episode Listen Later Jan 13, 2012


By: Lemaire, Charles Antoine, 1801-1871 - Rémond, N. - Duménil, Aug. - MaubertPublication Details: Paris :H. Cousin,[1841-1847].Contributed By: Missouri Botanical Garden, Peter H. Raven Library

Pillars of Biodiversity
Caroli Linnaei ... Species plantarum, vol. 1

Pillars of Biodiversity

Play Episode Listen Later Nov 23, 2011


Volume: vol. 1By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae :Impensis Laurentii Salvii,1753.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

species classification botany peter h raven raven library
Pillars of Biodiversity
Caroli Linnaei ... Species plantarum, vol. 2

Pillars of Biodiversity

Play Episode Listen Later Nov 23, 2011


Volume: vol. 2By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae :Impensis Laurentii Salvii,1753.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

species classification botany peter h raven raven library
Pillars of Biodiversity
Caroli Linnaei...Systema naturae per regna tria naturae, v.1

Pillars of Biodiversity

Play Episode Listen Later Nov 23, 2011


Volume: v.1By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae : Impensis Direct. Laurentii Salvii, 1758-1759.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

tria systema regna peter h raven raven library
Pillars of Biodiversity
Caroli Linnaei...Systema naturae per regna tria naturae, v.2

Pillars of Biodiversity

Play Episode Listen Later Nov 23, 2011


Volume: v.2By: Linné, Carl von, 1707-1778 - Salvius, Lars, 1706-1773Publication Details: Holmiae : Impensis Direct. Laurentii Salvii, 1758-1759.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

tria systema regna peter h raven raven library
Pillars of Biodiversity
Hortus Cliffortianus :

Pillars of Biodiversity

Play Episode Listen Later Nov 23, 2011


By: Linné, Carl von, 1707-1778Publication Details: Amstelaedami [Amsterdam]:[s.n.],1737.Contributed By: Missouri Botanical Garden, Peter H. Raven Library

plants clifford botany hortus peter h raven 1737 raven library
Sciences Lectures
How many species will survive the 21st century?

Sciences Lectures

Play Episode Listen Later Aug 4, 2011 56:40


Peter H. Raven President Emeritus, Missouri Botanical Gardens present the 2011 John Smaillie Tennant Lecture, Botany, Division of Sciences. Held July 21, 2011.