Very interesting class.

Only one comment : it is becoming difficult to answer to questions. Indeed, they are referring to 2014 datas that are getting harder to get and links that can't be found anymore.

Great content and Dr Sachs a great lecturer. Some questions on tests need updating as websites used for course materials have more up-to-date data that is not always reflected in the questions.

An open window on the world + cool content + a wonderful teacher = It was a very cool and learning experience even if some updates (we are in 2020) would be useful during the weekly tests

There is some great material in here (especially detailing the more hopeful aspects of sustainable development). The only bad part was that some of the links need updating in the quizzes.

Very informative with extensive materials and an awesome professor. Highly recommended, the only thing better would be regular updates t some of the charts used and taking it in person.

Great course, very interesting content and amazing Professor. However there are some issues with the quizzes due to a lack of update of the course, which can be frustrating at times.

Sachs was an entertaining professor and the lectures where informative. He really does illustrate and discuss the different factors that may effect an area's development process.

Very interesting and demanding course, however is very long (14 weeks) in comparison to other online courses and due to its length it should provide a certificate of completion.

Al ser un curso hecho el 2012 hay muchos cuadros y consultas del examen que ya no están disponibles en internet, pero aún así la información es valiosa y es posible terminarlo.

Very interesting course, it gives a global overview of the topic. Unfortunately the tests are often outdated and refer to graphs that do not exist anymore... very frustrating!

Text book and videos were great...quizzes were a little behind in that the links were often no longer connected so you are left to guess when the link holds the specific an

it was very interesting, I learned many new things and got insights into valuable information. It should be updated, though, because many links in quizzes do not work.

Muy buen curso, entrega lo que ofrece y Jeffrey Sacks explica muy bien. El único problema son los quiz, traen links que no funcionan y hay respuestas que están mal.

A great overview of a very complicated topic. Dr. Sachs does a great job presenting the information in easily digestible bits but still keeps it interesting.

Great course but some of the content needs to be updated to include recent events since Environmental Science is such a fast-changing field at the moment.

Good lectures, quizzes need to be updated with new links. Learned a lot from the professor, overall digital quizzes and exams had problems only.

Very informative and interesting. The links to various sources in the tests are not up to date though and make it difficult to get a 100% score.

Very good course! The only thing that i must criticise is that in many weekly tests there are mistakes. This can get a little bit frustrating

Really thorough overview of some of the most pressing issues facing the world, the need to act fast, and some potential courses of action.

Very interesting and motivating course. I liked the way data was incorporated although unfortunately some links to statistics did not work

Very Interesting and helpful. It's a way to open our mind and definitely something that everyone should know about before it is too late.

In this course there is a lot of valuable information, well prepared lessons and readings. I would try to make quizzes more complicated.

Unfortunately, I am missing more normative approach, advises in sense of reduced individual consumption in terms of food and traveling.

The content is good. The delivery of lectures can be more engaging, with aid of visuals to illustrate and emphasize important concepts.

I've really enjoyed this course and I enjoyed following the lectures. I feel a need to do something real a sustainable world.