Models

How much carbon dioxide is going to be in the air in 2050?

Model Definition

\[y_i = \beta_0 + \beta_1 x_{1,i} + \epsilon_i\]

with \(y = carbon\_dioxide\_emissions\), \(x_1 = year\), and \(\epsilon_i \sim N(0, \sigma^2)\).

Fitted Model

stan_glm
 family:       gaussian [identity]
 formula:      carbon_dioxide_emissions_sum ~ year
 observations: 29
 predictors:   2
------
            Median    MAD_SD   
(Intercept) -937530.5   37412.8
year            483.1      18.7

Auxiliary parameter(s):
      Median MAD_SD
sigma 830.3  117.3 

------
* For help interpreting the printed output see ?print.stanreg
* For info on the priors used see ?prior_summary.stanreg

Plot

What is going to be the average land temperature in 2050?

Model Definition

\[y_i = \beta_0 + \beta_1 x_{1,i} + \epsilon_i\]

with \(y = average\_land\_temperature\), \(x_1 = year\), and \(\epsilon_i \sim N(0, \sigma^2)\).

Fitted Model

stan_glm
 family:       gaussian [identity]
 formula:      land_temperature_avg ~ year
 observations: 24
 predictors:   2
------
            Median MAD_SD
(Intercept) -32.6    9.3 
year          0.0    0.0 

Auxiliary parameter(s):
      Median MAD_SD
sigma 0.2    0.0   

------
* For help interpreting the printed output see ?print.stanreg
* For info on the priors used see ?prior_summary.stanreg

Plot