Science (Audio)

Speakers V. Ramanathan, Nancy Knowlton and Jonah Western discuss humanity's past, present and future of the Anthropocene. Veerabhadran Ramanathan has had the privilege and pleasure of collaborating with Paul Crutzen for more than 40 years. Crutzen is one of the most creative, innovative and original geo-scientists of his generation. Nancy Knowlton speaks on how the ocean is enormous, indeed so large that for centuries we assumed there was nothing we could do to substantially harm it. Unfortunately, we now know that this is not true. David (Jonah) Western emphasizes how conservation is common to all societies which learned to live within ecosystem limits. If we use our unique capacity for cooperation and planning, there is hope for combating global warming and sustaining the diversity of life globally. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37935]

Brenna Henn (Stony Brook Univ) explores patterns of genetic diversity across Africa and models for modern human origins in this talk. She discusses whether genetic data is concordant with archaeological data and suggests directions for future research. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 30979]

With relentless focus on scalability and innovation, how does society navigate the environmental impact of our global computing needs? George Porter, PhD, shares a path forward with an emphasis on how we teach students about computer science and how we design and build networked systems. Series: "Exploring Ethics" [Humanities] [Science] [Show ID: 37317]

The ocean is enormous, indeed so large that for centuries we assumed that there was nothing we could do to substantially harm it. Unfortunately, we now know that this is not true. We are having success on some fronts, such as saving species from extinction, protecting ocean waters, fishing more sustainably, and restoring damaged ecosystems by replanting critical species and reducing pollution. Even actions on land, such as removing dams from rivers and rats from islands, can make an important difference to marine life. Of course, we still need to do much more, and do it faster. In the future, we can turn to new tools drawn from the natural and social sciences. Big data and genetic interventions have a role to play, as do ocean-based renewable energy sources and new financing schemes. Perhaps most important is the growing recognition that success depends on empowering local communities in efforts to create a healthier ocean. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37775]

The last decade has seen a dramatic capture of digital material for machine learning production. This data is the basis for sense-making in AI, not as classical representations of the world with individual meaning, but as mass collections: ground truth for machine abstractions and operations. What happens when data is seen as an aggregate, stripped of context, meaning, and specificity? In what ways does training data limit what and how machine learning systems interpret the world? And most importantly, what forms of power do these approaches enhance and enable? Professor Kate Crawford is a leading international scholar of the social and political implications of artificial intelligence. In this lecture, Crawford shares new work that reflects on what’s at stake in the architecture and contents of training sets, and how they are increasingly part of our urban, legal, logistical, and commercial infrastructures. Series: "Tanner Lectures on Human Values" [Humanities] [Science] [Show ID: 37729]

The human capacity to change the planet is not something new, but is rooted in our deep evolutionary past. One of the hallmarks of humans is our large brain size, which began to expand about 2 million years ago. This expansion did not come without consequences, and two are particularly important. The first is the additional energy requirements needed to fuel this larger brain size together with the concomitant life history factors such as shorter inter birth intervals, more dependent offspring and longer periods of growth and development, and longer lifespans. The second is the solution to these energy requirements that involve cooperative breeding and the development of the high risk/high return hunting and gathering foraging strategies. From this foundation we trace the increasing capacity of humans to extract more energy from the environment through the development of a reliance on fire, the agricultural revolution leading to the industrial revolution and modern times. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37770]

Nicolas Rivron, PhD, shares his lab's work to better understand healthy embryo development. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Show ID: 37672]

Sheldon Solomon explores how humans manage the terror of death, and the larger implications of this quest for immortality via death denial.  Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 32056]

Domesticated species of crops are an interesting group of organisms that have co-evolved with Homo sapiens, and have been important in human survival and fitness. We trace the origin and spread of these domesticated crop species over the last 12,000 years, discussing both their impacts on human society as well as to the climate and human evolution. We will also present the challenges in modern agriculture and food security. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Humanities] [Science] [Show ID: 37771]

Veerabhadran Ramanathan has had the privilege and pleasure of collaborating with Paul Crutzen for more than 40 years. During the year 2000, when he announced to the world about his Anthropocene concept, Crutzen and Ramanathan were in the midst of a major field study on Atmospheric Clouds over the Indian Ocean. Crutzen is one of the most creative, innovative and original geo-scientists of his generation. Ramanathan describes the Anthropocene using the lens of a climate scientist. He concludes with speculation about how and when we will transition from the current adolescent age of the Anthropocene subject to multiple assaults on the environment to a mature, sustainable and safe Anthropocene. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 37769]