Computational document

module3/exo3/exercice_en.ipynb

@@ -412,6 +412,20 @@
     "plt.show()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Yearly CO₂ Statistics"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "In this section, the dataset is grouped by year to compute key statistics for atmospheric CO₂ concentration: minimum, maximum, and mean values for each year. This allows us to observe not only the general trend over time but also the seasonal variation within each year."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 13,
@@ -421,7 +435,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "    Year  Minimum of CO2  Maximum of CO2  Mean of CO2\n",
+      "    Year     min     max        mean\n",
       "0   1958  313.21  317.51  315.335000\n",
       "1   1959  313.33  318.29  315.980833\n",
       "2   1960  313.83  320.03  316.909167\n",
@@ -490,7 +504,7 @@
    ],
    "source": [
     "yearly_stats=df.groupby('Year')['CO2'].agg(['min', 'max', 'mean']).reset_index()\n",
-    "yearly_stats.columns = ['Year', 'Minimum of CO2', 'Maximum of CO2', 'Mean of CO2']\n",
+    "yearly_stats.columns\n",
     "\n",
     "print(yearly_stats)"
    ]
@@ -500,6 +514,20 @@
    "metadata": {},
    "source": []
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Conclusion"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Thus, the measurements of CO₂ concentration collected at the Mauna Loa Observatory show a gradual increase from 315.335 ppm in 1958 to 424.348 ppm in 2024. This rise is primarily attributed to the burning of fossil fuels and has been accelerating in recent years. Since CO₂ is a greenhouse gas, this upward trend has significant implications for future global warming."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,