The Sandip Roy Show

The history of rubber we would rather erase ft Vidya Rajan

Oct 27, 2025
Vidya Rajan, an adjunct associate professor and author of *Rubber: The Social and Natural History of an Indispensable Substance*, dives deep into the multifaceted world of rubber. She uncovers the plant's origins, linking it to colonial exploitation and the brutal labor conditions of rubber harvesting. Vidya also discusses the intriguing history of rubber's commercialization, from its Olmec roots to its strategic importance in WWII. She highlights the ecological consequences of plantation practices and suggests future solutions through recycling and alternative sources.
Ask episode
AI Snips
Chapters
Books
Transcript
Episode notes
INSIGHT

Why Plants Make Rubber

  • Plants produce latex as a second-line defence to seal wounds and deter herbivores with sticky or toxic compounds.
  • Latex functions both as a bandage and an antifedant that can immobilize or nauseate attackers.
INSIGHT

Hevea Is The Gold Standard

  • The highest-quality commercial rubber comes from Hevea brasiliensis, with a few other species like Russian dandelion as alternatives.
  • Many plants make latex, but economic quality and strand length make Hevea the gold standard.
INSIGHT

Rubber's Gondwana Origin

  • Rubber-producing plants concentrated in South America and Africa reflect ancient biogeography from Gondwana.
  • Continental breakup and intense herbivory drove diversification of latex-producing angiosperms there.
Get the Snipd Podcast app to discover more snips from this episode
Get the app