The last activities.

1. Carbon-footprint: A carbon footprint is defined as the total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).

3.What percentage was in stuff______, travel ______, food ______, 

   Stuff: 28%, Travel: 35%, Food: 21%  and Home: 16%

4. When was the last time the Earth warmed up so fast?

   wich happened about 55 million years ago. 

5. What is the name of the current extinction event?

   Holocene extition, 

6. What will probably happen by 2050? 

   90% of coral reefs could be gone by 2050 and bettwen 30% and 50% off all species extinct. 

7. About what proportion of mammal species could disappear by 2100? 

   1/5 of mammals species could be disappear by 2100

8. Which type of plant would probably grow faster with more CO2, weeds or crops? 

   Weeds grow faster than crops because carbon dioxide favors their development.

9. How many dollars has climate change cost us in wheat and maize losses per year since

1980?

  since it´s 1980, climate change has already cost us 5 billion dollars a year 

10. We have a little over a decade to reduce the effects of carbon dioxide. 

11. Give an example of negative changes we’re already seeing. 

Water scarcity and droughts are some of the effects that we are witnessing due to climate change, hunger and lack of food, loss of crop production is another of the negative consequences of climate change.

12. 54 trillion dollars would be the estimated cost to be able to face the greatest climate crisis of recent times.